There might be something wrong in the configuration of Powerbuilder (I've never used it). The variables are wrong as well (there's a : where a @ should go).
Luis C.
General Disclaimer:
Are you seriously taking the advice and code from someone from the internet without testing it? Do you at least understand it? Or can it easily kill your server?
How to post data/code on a forum to get the best help: Option 1 / Option 2