Scripting for Finder

I need to change a file name in a folder from illus. to illus.eps
I do not know anything about applescripting, but I had a sample script that would find/change file names in a specified folder with OS9. Now it doesn’t work in OSX. I have the folder on my desktop. The folder name is PAGES. Inside the PAGES folder are individual folders for each page, I have 1400 pages. I need to be able to find file names and change them in a specified folder.

Can anyone help???
Thanks!
Vanita

Vanita,

Would you post your script? Then maybe we can see what broke in OS X. The logic for changing names is essentially the same.