Okay. First, the colours in the logo that stand out the most for me in the logo are as follows; 1. Green + Yellow 2. Blue 3. White 4. That strange pinkish colour
You'll probably want some hints of green, yellow and blue, as well as some white to balance it out on the forum.
The logo image with the people on it would look better is there were less people, or they were smaller because the strip doesn't fit in the box.
As for the specific icons, I'll have to look into freeforum, as I haven't used it before.
Sorry to bother you but I'm writing to you as the owner of #AnotherContestGroup and I would like to say that we are holding a Journal CSS contest [link] due to us now becoming a super group. So I/we were wondering if you might be able to advertise this for us, our contest has been running for 2-3 days and we've had no interest what so ever so I thought it might be an idea to contact the owners of CSS groups and ask them if they mind informing their members about this contest. If you can do this for us then as a thank you we will put your icon on our journal to promote your group.