Question : I need a program that will encrypt a folder over the network on a server

I have a folder called IT on the server under a second partition. I
I have the second partition mapped on my workstation.  I will like
to be able to encrypt that IT folder from my workstation and also
decrypt it back from my workstation.  

I have used Universal Shield 4.3.1, Protect Folder, lock folder
and others and it seems to me that i cannot encrypt or decrypt
a folder that is on another machine(servers, workstations)
 from my machine.  PGP has netshare but there is no
trial version.  Any other program that might be able to solve this
problem.

Answer : I need a program that will encrypt a folder over the network on a server

The easiest way to do that is still with CSS and not with an imagemap. If you position text over the image, the color change is a snap.

If you insist on doing this with an imagemap, then scrathcyboy is most likely correct in that the internal Dreamweaver swap image behavior is not playing well with whichever version of IE is having the problem.  This is probably best solved by not using the behavior and searching for a different/newer one.