As you might have heard, the hardware failure last week affected many services, but the majority are now fixed. One exception to that is the uploading on WinCustomize is down. This is a problem that will most likely not be fixed until next week.
Once the uploads are fixed and everyone rushes to get their works uploaded, we will do our best to get things through moderation in a timely manner.
Check this thread for updates, and thanks for your patience. 
Update - January 4th
Uploading should be working now