Multiple joins on the same table

Question

I'm new to SQL 2005 & C# - I'm a MySQL/PHP crossover.
I'm using s Stored Procedure and I'm trying to do multiple joins onto
one table.  I have 6 fields in one table that are foreign keys of
another table:
Table1
id
PrimaryCode
SecondaryCode1
SecondaryCode2
SecondaryCode3
SecondaryCode4
SecondaryCode5
Table 2
id
Title
CommCode
The fields in table 1 (except is obviously) hold the id of a row in
Table 2.  When displaying data I want to display "Title" -
"CommCode" for each item in Table 1.  I got myself started by
searchig on the net and I have a stored procedure.  The obvious
problem is that as it goes through the Query only the last value
remains in place - since each value before it is cleared in the
UNION.   How can I do this??  Here's my Stored Procedure:
=====================================
ALTER PROCEDURE GetRegistersSpecific
@SearchTxt int
AS
SELECT
registrations.Company,registrations.Address1,registrations.Address2,registrations.City,registrations.State,registrations.Zip,registrations.ContactName,registrations.Phone,registrations.Fax,registrations.Email,registrations.Website,registrations.Feid,registrations.BusinessType,registrations.BackupWitholding,registrations.SignedName,registrations.SignedDate,
PrimaryCode AS MyID, Title, CommodityCode
FROM registrations
JOIN CommodityCodes ON PrimaryCode = CommodityCodes.id
UNION
SELECT
registrations.Company,registrations.Address1,registrations.Address2,registrations.City,registrations.State,registrations.Zip,registrations.ContactName,registrations.Phone,registrations.Fax,registrations.Email,registrations.Website,registrations.Feid,registrations.BusinessType,registrations.BackupWitholding,registrations.SignedName,registrations.SignedDate,
SecondaryCode1 AS MyID, Title, CommodityCode
FROM registrations
JOIN CommodityCodes ON SecondaryCode1 = CommodityCodes.id
UNION
SELECT
registrations.Company,registrations.Address1,registrations.Address2,registrations.City,registrations.State,registrations.Zip,registrations.ContactName,registrations.Phone,registrations.Fax,registrations.Email,registrations.Website,registrations.Feid,registrations.BusinessType,registrations.BackupWitholding,registrations.SignedName,registrations.SignedDate,
SecondaryCode2 AS MyID, Title, CommodityCode
FROM registrations
JOIN CommodityCodes ON SecondaryCode2 = CommodityCodes.id
UNION
SELECT
registrations.Company,registrations.Address1,registrations.Address2,registrations.City,registrations.State,registrations.Zip,registrations.ContactName,registrations.Phone,registrations.Fax,registrations.Email,registrations.Website,registrations.Feid,registrations.BusinessType,registrations.BackupWitholding,registrations.SignedName,registrations.SignedDate,
SecondaryCode3 AS MyID, Title, CommodityCode
FROM registrations
JOIN CommodityCodes ON SecondaryCode3 = CommodityCodes.id
UNION
SELECT
registrations.Company,registrations.Address1,registrations.Address2,registrations.City,registrations.State,registrations.Zip,registrations.ContactName,registrations.Phone,registrations.Fax,registrations.Email,registrations.Website,registrations.Feid,registrations.BusinessType,registrations.BackupWitholding,registrations.SignedName,registrations.SignedDate,
SecondaryCode4 AS MyID, Title, CommodityCode
FROM registrations
JOIN CommodityCodes ON SecondaryCode4 = CommodityCodes.id
UNION
SELECT
registrations.Company,registrations.Address1,registrations.Address2,registrations.City,registrations.State,registrations.Zip,registrations.ContactName,registrations.Phone,registrations.Fax,registrations.Email,registrations.Website,registrations.Feid,registrations.BusinessType,registrations.BackupWitholding,registrations.SignedName,registrations.SignedDate,
SecondaryCode5 AS MyID, Title, CommodityCode
FROM registrations
JOIN CommodityCodes ON SecondaryCode5 = CommodityCodes.id
WHERE registrations.ID = @SearchTxt
=====================================
Thanks

Answer 1

Well, I tried using UNION ALL and got the same response.  I also tried doing :
Title AS SecTitle1
Title AS SecTitle2
Title AS SecTitle3
etc...
I get different values in the Output Window when I execute the query,
but as expected it only returns the first value since the script
executes all the way through before it outputs values.
Here's how I'm executing:
while (rdr.Read())
                // get the results of each column
string company = (string)rdr["Company"].ToString();
string address1 = (string)rdr["Address1"].ToString();
string address2 = (string)rdr["Address2"].ToString();
string city = (string)rdr["City"].ToString();
string state = (string)rdr["State"].ToString();
string zip = (string)rdr["Zip"].ToString();
string phone = (string)rdr["Phone"].ToString();
string fax = (string)rdr["Fax"].ToString();
string email = (string)rdr["Email"].ToString();
string website = (string)rdr["Website"].ToString();
string feid = (string)rdr["Feid"].ToString();
string businessType = (string)rdr["BusinessType"].ToString();
string contactName = (string)rdr["ContactName"].ToString();
string primaryCode = (string)rdr["PrimTitle"].ToString();
string secondaryCode1 = (string)rdr["SecTitle1"].ToString();
string secondaryCode2 = (string)rdr["SecTitle2"].ToString();
string secondaryCode3 = (string)rdr["SecTitle3"].ToString();
string secondaryCode4 = (string)rdr["SecTitle4"].ToString();
string secondaryCode5 = (string)rdr["SecTitle5"].ToString();
string backUp = (string)rdr["BackupWitholding"].ToString();
string signedName = (string)rdr["SignedName"].ToString();
string signedDate = (string)rdr["SignedDate"].ToString();