Krool, I've said it before but it's worth repeating. This is truly a phenomenal effort, and I'm continually impressed with your willingness to listen to suggestions for improvements.

Someday, I should attempt to follow your lead and include the MSFLXGRD.OCX and TABCTL32.OCX in this endeavor. The FiexGrid might be a bit of work, as it has some rather complex features. However, the TabControl is nothing but a fancy container that just shifts the controls off to the left when you click the different tabs. Knowing what I know about it, I could probably mock one up pretty quickly using the TabStrip and PictureBox, which you've already done.