A little list of things you can and cannot do.
The Footer section, and the Header section containing Feed/Chat/Blast/HappyHour/OnlineNow, interaction links (chat/message/gift/bling etc..) and the ToolTip window are all uneditable as intended by LostCherry/CherryTap/Fubar.
Can:
1.) Change the color, size, font, and styling on just about every bit of text on the page.
2.) Change the background color on just about any section on the page.
3.) Change the width, heigth, and border to any image on the page.
4.) Change the width and heigth of any embedded object in your comments.
Cannot:
1.) Stylè Tags don't work. You'll be using CSS format to customize your page via the "Skins" section.
2.) ÐIVs are filtered as well. No go on that.
3.) Use ÍFRAMEs.
4.) Use Jává.
5.) Hide most tables anymore. (I will show you how to hide most the profile for a "private" profile though.)
6.) Cover the Advertising Space or edit the Footer section.
7.) Customize the popup window when you hover over people's links / pics.
8.) Customize the Live Feed, SB or Chat Box, Blast, Online Now, or Happy Hour Header Section.
9.) Customize the interaction links, or rate box, you have to adjust the table as a whole.
10.) Steal me. =]]
If there's anything I missed in haste, I'll edit this post.