By 'original Windows image' I just wanted to know if you were using the Windows that came originally with the notebook from ASUS or if you reinstalled/upgraded Windows yourself which happens once in a while by the customer or someone they gave it to fix.
Yes, that's the symbol I would look for to support ExpressGate although I'm still not sure if it's supported on your particular model, but really don't have much information about it yet.
There isn't a bios setting you need to worry about for my Vista notebook at least, so just wondering if you heard about anything I'm not aware of.
It couldn't hurt to post bios pictures, but right now at least I don't know what to look for if it really matters.
I'm more familiar with ExpressGate on the older Vista notebooks rather than the Win7 notebooks (if there is any difference?), so if you're interested, consider contacting your local ASUS Support just to check if they know of a quick solution:
http://support.asus.com/Hotlines.aspx?SLanguage=enEdit: Was able to find a Win7 notebook supporting ExpressGate, so can work with you on it more. The ExpressGate Cloud software was included with the original ASUS Windows image and shows up under Programs and Features.
Pressing the ExpressGate button by iteslf when the notebook is powered off opens it up, so nothing too special you should need to do normally.