vBulletin 4.2.3 Editor Problem

[pratul11]

Hi
I am a new owner of the vBulletin Forum www.occultforums.net. I am using a SKin downloaded from here called Mint.
The problem is with the Editor. The icons of the Editor are missing. But they can be seen if I use vBulletin default style. What should I do?
Also, three Smilies at the Right side of the Editor are missing (these are missing in the default style too).
What should I do to fix the problem? Here's the link of a Screenshot.

Please help. Thanks