Hey I was thinking. Your third column is in your signature, what happens if you remove the signature from the profile.
I've edited Gaia's HTML directly in the past, and when tampering with the columns and such it puts them back where they need to go. So see if removing the signature restores the third column.
If it works, it probably still won't remove other parts that shouldn't be there, but at least you will have your third column back (in theory).
Hey, so my post was seen and answered in the last ATA, http://www.gaiaonline.com/forum/t.84348889_63/#63. Though I'm not sure why they weren't kind enough to reset your profile.
You can try PMing a moderator. Moderators can be found atop of any forum by clicking the green [View Forum Moderators] link. See if one of the moderators can reset your profile for you.
I do apologize it seems my post in the AtA was overlooked. I'll be re-posting it next Monday, hopefully sooner. It took me longer to get home than I expected, as I have a late class and it was raining.