Maybe I'm being overly picky, but the location you mentioned in the subject and the location in the body of the message don't match. What I'd recommend in Windows XP is to start by clicking
Start > Search > files and folders
Now, if you are using XP home, you should have the search companion, and here you would select
"All files and folders" and select "look in local hard drives".
If trs2006 is located in the programs folder (where, IIRC it installs by default), you may not have a "C:/trs2006/" folder....