Agreed.  The max size for avatars is currently 64x64, max 80k.  Photos can be in the following formats: .gif, .jpg, .jpeg, or .png.  If you try to upload a .tga, .bmp, or .tif, it won't work. 
  
Regarding everything else: 
  
- Calendar: I'll email the admin and see if he can remove the 'add entry' from the board code. 
  
- Photos should be working (I uploaded mine) 
  
- You can turn off smilies in your control panel under Board Settings (although it will filter out other posted images too.) 
  
- Based on this lovely opening weekend, I'll be working with the admin and other mods on new guidelines.  Please note you can access them from any page on the board - Look in the upper left hand corner of each page for the "Forum Guidelines" link. 
  
- Skins take a while to make, but if you have suggestions from other boards that might help.  I do know this software was modified quite a bit so they'd need to be customized somewhat. 
  
- Ignoring user's posts, that's coming soon, but isn't part of the software quite yet. 
  
- User titles *are* based on post count.  Think of each post as an experience point...