Upload POST PL/SQL (gateway)

I've managed to configure upload of documents via a web brower on a box running oracle 9i.
It does the usual upload into a documents table (blob data). It is pretty much the same as the well published example given in metalink.
I've been trying to replicate this PL/SQL upload/POST on another box, similar install at it REFUSES to play nice. When I upload a document I get the following error message in the apache error log :-
[Thu Jul 18 11:40:24 2002] [error] mod_plsql: /pls/hdrr/upload_attachment HTTP-200 0 No data from PL/SQL procedure
When I try and retrieve a file from the documents table I get the following error message :-
[Thu Jul 18 10:46:33 2002] [warn] mod_plsql: Stale Connection due to Oracle error 22275
[Thu Jul 18 10:46:33 2002] [error] mod_plsql: /pls/hdrr/download_attachment ORA-22275
ORA-22275: invalid LOB locator specified
ORA-06512: at "SYS.WPG_DOCLOAD", line 52
ORA-06512: at "HDR.DOWNLOAD_ATTACHMENT", line 10
ORA-06512: at line 7
i tried the download after moving the documents table from the working machine to the one that isn't working.
I've also tried implementing this POST/upload/pl/sql on the same working machine but under a different database with no luck :(.
Any ideas?
I've completely exhausted myself trying to determine what is wrong with it.
Cheers
Joe

Did a bit more investigating and got it a bit further, still getting an error.
Do i need to update my plsql or packages? The package dbms_sys_sql is wrapped, so I can only imagine that this is my option.
Joe
<1026983867476 ms> QUERY_STRING(13)=filename=F895651019/bitmap1.bmp(32)
<1026983867476 ms> REMOTE_ADDR(12)=172.16.1.102(13)
<1026983867476 ms> SERVER_PROTOCOL(16)=HTTP/1.1(9)
<1026983867476 ms> REQUEST_PROTOCOL(17)=HTTP(5)
<1026983867476 ms> HTTP_USER_AGENT(16)=Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.0.3
705)(70)
<1026983867476 ms> HTTP_HOST(10)=escape(7)
<1026983867476 ms> HTTP_ACCEPT(12)=*/*(4)
<1026983867476 ms> HTTP_ACCEPT_ENCODING(21)=gzip, deflate(14)
<1026983867476 ms> HTTP_ACCEPT_LANGUAGE(21)=en-au(6)
<1026983867482 ms>ORA-1001 Execute ORA-01001: invalid cursor
ORA-06512: at "SYS.DBMS_SYS_SQL", line 819
ORA-06512: at "SYS.WPG_DOCLOAD", line 356
ORA-06502: PL/SQL: numeric or value error
ORA-06512: at line 10
<1026983867482 ms>Stale Connection due to Oracle error 1001
<1026983867482 ms>/pls/hdrr/download_blob ORA-1001
ORA-01001: invalid cursor
ORA-06512: at "SYS.DBMS_SYS_SQL", line 819
ORA-06512: at "SYS.WPG_DOCLOAD", line 356

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Re: How can I enable embedded pl/sql gateway to run on port 80
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