Hi.

I had an idea for FxP crews - an upload counter in the forum!

You start a thread and there you have a field under the topic line where you enter the size of the upload.
Also you have a field in the user's profile where all inputs from this filesize field will be added.

Is there already a "upload-counter" hack or a similar hack, i have only to change some words?

This has been asked many time's before. Some did it but it's not public. I don't like it very much. It requires mods to look if no-one is cheating.

Dont see the point in it personally and as Niels says requires mod to check that whats entered is genuine.
A simple search of the forums here would have found numerous other requests where simmilar answers are given.

yep and if you just can imagine how lazy people tend to be, it drives admins crazy :p