Hardware virtualization support has to be built into your CPU I believe, to use stuff like MS's Virtual PC software... If its not there, its not there. But what exactly do you need help with?
also a Acer 7720G has a VT Intel CPU. ACER did not enable this in the bios and did removed this advanced bios page from the bios. The Users can not enable this fature because of the stripped down ACER bios. Call ACER or E-Mail ACER for a new bios with option enabled. I hate those big companie's that think they can take it all out.