Sign in..and then?

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>