Quote Originally Posted by dazappa
Won't accept mine xD tried winrar and 7zip; neither produced a zip your site liked. Tried with the filename containing underscores and without underscores. Filesize is 400kb; quite a bit less than the 24mb limit.

(Tried both lowercase and uppercase extension (zip) just to be sure too)
This is what it says on the competition site:

File uploads enabled
Hi all,

The file upload facilities are now mostly complete. Each stage can be configured to request a design archive, install archive, source archive and screenshot. Each successive upload will overwrite the last one you uploaded for that stage. The exception to this is screenshots where the system will only retain the last one you uploaded (not one for each stage like the other types).

The file size limits are specified in the general terms and conditions. You can only upload ZIP, RAR and TAR.GZ archives (any problems with these not working, let me know ASAP) and JPEG, PNG and GIF images for the screenshots (maximum dimensions are in the general terms and conditions).

Please note:- The screenshot upload is not quite finished.
Posted by AthenaOfDelphi (2009-07-09 09:51:01)
Notice the highlighted file types allowed...

I hope this helps :-)
cheers,
Paul