Add tooltip to set of images

I need the tool tip function to work on the thumbnail images of videoxtemplate3c. make sure when the too tip pops up, it needs to overlap over a Silverlight, WMV or FLV player. I need the tooltip to auto expand vertically. The width can be fixed. I need it to look like this mock up. Look at file [login to view URL] here is the source code. [login to view URL]