I have been using TotalTerminal for a while now. But since the latest 1.1.1 the visor is displayed under the dock. (I have my dock on the left side of my screen) This is both annoying and renders the TotalTerminal useless.

This is all due to a bug fix in 1.1.1. There is a way to fix this issue.
Open a new terminal.app window and enter the following line:
defaults write com.apple.Terminal TotalTerminalVisorWindowOnHighLevel -bool YES
Restart Terminal.app with TotalTerminal.

The TotalTerminal visor is now shown on top of the dock.
Source: GetSatisfaction