That code works fine on my machine. Are you using IIS URL Rewrite or mod_rewrite? If so, check your rules. 403 indicates that you don't have access to the file being processed.
It's your web server throwing the 403. It doesn't sound like processing is getting as far as the CF server/
i dont beleive we are, but i will take a look. thanks for the advice. Odd that it would work with "5" but not "5555".
Any hints on tracking down what is interupting the processing?
both of you were correct. We had some code within the application.cfm. Thanks again for your help.