calling an external script with arguments

[memobug]

Greetings,

I tried this in Templates but either it went unnoticed or no-one knew/cared?

I have put together a vbulletin/photopost integration that will print several of a user's last photopost uploads in their profile.

to get this to work, I have to be able to call an external php script and pass the userid as a command line argument, something like

thumbnail.php?user=$userid

This way the script knows which user's photos to print!

But, when I do this, I don't get the $userid variable passed. When I put that into phpinclude template the script gets called but it passes "$userid" instead of the actual variable content (id of the user).

Does anyone know how to call an external script passing arguments like this?

Thanks!

Matt