UltraVNC

Does anyone know of an Iphone VNC app that will allow me to left click and hold, while I move slider on the program running on the host machine. This would be the same as dragging and dropping an item.

Remoter can do that. You double-tap and hold like a trackpad.
http://itunes.apple.com/us/app ...

Do any of you know if any of these Apps support using MS Login authentication from UltraVNC most only do simple I've tried to do it with Jaadu with no success but was wondering if anyone else has tried it on the other apps before blowing more $ on them.

Thanks in Advance,
-Ryan

Yes, Remoter has ...