Hey guy. Neat spot.
The Av-ware's from the 90s, and Avatar-X doesn't bother with the site much anymore. To get around the 100KB limit most people use image hosting services like imgur or Flickr.
As a new member the Make Publicly Viewable checkbox should be greyed out for you; that's another oversight of Av's. Until you get "full member" status a LOT of the threads and database entries aren't visible to you. Once you become a full member you can choose whether your threads in the regional forums are visible to everyone or full members only, depending on how sensitive the subject matter is.
You should read up on the
FAQ. There's a lot of good info in there.
The SpellCheck and Preview button at the bottom of the composition window is a great way to verify you're using the tags correctly.
Check out the pinned threads in the
Rookie Forum too.
If you have specific questions use the Contact A Mod feature and someone'll get back to you reasonably quick.
Welcome aboard.