User Levels and Uploading Images problem

On my blog there’re few registered users who can add new posts. They have a “WRITER” level, with limited access. They can’t publish they’re on posts, for exmaple. The reason: I want to check it out before they do.

However, one the WRITER level is set, the user can’t upload images through WordPress’ interface.

Anyone know anything about this problem? Any plugin? Any ideas?

Thanks a million,

T