Head on over to Richard Smith's blog to get GImageX. GImageX is a GUI for imageX. The original verison was written in AutoIT but this version has been completely rewritten in C++. The new version v2.0.1 BETA feature list on Richard's site:

• Native x86 and x64 versions entirely written in C++.  Tiny ~100KB executable.
• Doesn’t use the imagex.exe utility at all – instead it uses the WIMGAPI interface (the wimgapi.dll file from the imagex directory)
• Progress bars, time elapsed, time remaining, file counts have been added
• Clean “abort” option
• Ability to mount, change and get info on WIM images

So what are you waiting for, click here to get it.