Error with Module

Hi

I have 2 problems which are as follows.

Firstly I get the following error which I would like to fix if possible

warning: mkdir() [function.mkdir]: File exists in /home3/caval/public_html/modules/imagecache/imagecache.module on line 555.

Secondly when I upload an image it doesn't show however it uploads to the sever. An example of this is at http://legitsites.com/sites/neobux/proofs

I have no idea how to deal with either problem and it may be the same problem but honestly I'm terrible at things like this

Any help would be appreciated