<< The recovery disks are for a very specific system configuration (ie. your compaq computer config.). >>
If you install the OS from the recovery disks, and then boot won't it see the new computer as "new hardware" and install the proper drivers? I've never installed from a recover disk (what i'm trying to say is, I don't know what the install/setup from the recovery disks is like or if it looks for some specific hardware id), but I think it might work... you basically have nothing to loose, why not try it. 😉