Sign in..and then?

Question

Hi, all.  I'm trying to make use of the client name that's signed in.  You will find the application.cfm and loginform.cfm files below.  What I can't figure out is how to use the exact user that is logged in.  The usernames are in a database, and each user has their own directory (to store their pictures in).  I don't know how to call up the user name that's logged in.  Specifically, I want the user to see only those images that exist in his folder (and are associated with them in the DB).    How do I do this? 
Thank you, and thank you for putting up with a noob.
application.cfm
<!---from http://www.adobe.com/livedocs/coldfusion/6.1/htmldocs/appsec27.htm--->
<cfapplication name="Orders" clientmanagement="yes" sessionmanagement="Yes" loginStorage="Session">
<cfif IsDefined("Form.logout")>
   <cflogout>
</cfif>
<cflogin>
   <cfif NOT IsDefined("cflogin")>
      <cfinclude template="loginform.cfm">
      <cfabort>
   <cfelse>
      <cfif cflogin.name IS "" OR cflogin.password IS "">
         <cfoutput>
            <H2>You must enter text in both the User Name and Password fields</H2>
         </cfoutput>
         <cfinclude template="loginform.cfm">
         <cfabort>
      <cfelse>
         <cfquery name="loginQuery" dataSource="omfoto">
         SELECT UserLogin, Role
         FROM People
         WHERE
            UserLogin = '#cflogin.name#'
            AND UserPassword = '#cflogin.password#'
         </cfquery>
         <cfif loginQuery.Role NEQ "">
            <cfloginuser name="#cflogin.name#" Password = "#cflogin.password#"
               roles="#loginQuery.Role#">
         <cfelse>
            <cfoutput>
               <H2>Your login information is not valid.<br>
               Please Try again</H2>
            </cfoutput>  
            <cfinclude template="loginform.cfm">
            <cfabort>
         </cfif>
      </cfif>  
   </cfif>
</cflogin>
<!---
<cfif GetAuthUser() NEQ "">
<cflocation url="securitytest.cfm">
</cfif>
--->
<cfif GetAuthUser() NEQ "">
   <cfoutput>
       <form action="../index.cfm" method="Post">
         <input type="submit" Name="Logout" value="Logout">
      </form>
   </cfoutput>
</cfif>
loginform.cfm
<H2>Please Log In</H2>
<cfoutput>
<!--- CGI.script_name/CGI.query_string are used to recreate the URL used to call the requested page
takes you to loginform.cfm--->
   <form action="#CGI.script_name#?#CGI.query_string#" method="Post">
      <table>
         <tr>
            <td>username:</td>
            <td><input type="text" name="j_username"></td>
         </tr>
         <tr>
            <td>password:</td>
            <td><input type="password" name="j_password"></td>
         </tr>
      </table>
      <br>
      <input type="submit" value="Log In">
   </form>
</cfoutput>

Answer 1

<cfscript>
session.varName = xyz;
</cfscript>
The doc on sessions can explain it better then me:
http://help.adobe.com/en_US/ColdFusion/9.0/Developing/WSc3ff6d0ea77859461172e0811cbec22c24 -7c48.html
Spending a few hours with the docs will be time well spent.
Regarding you application, what are you going to do when the user uploads a file with the same name later?