Since you want to clone the whole drive, including the OS and the ability to boot, grab a free utility like EASEUS disk copy (http://easeus.com/disk-copy/), put the drive in the machine, and clone the data from the array to the disk. Once you remove the RAID array and boot from the disk, there is an excellent chance that the boot will fail because the system is trying to read your OS drive using RAID drivers. Should this happen, boot to your install disk and do a Repair install.
Isn't sevenforums great? Actually, that's not what I meant, but it looks worth trying, if your system boots in the first place.
I only do repair installations if, as I wrote above, the system will not boot. I boot from the installation DVD, letting it detect my Win7 install, and choosing to do a repair. The link you provided looks snazzier, since it goes to the update site instead of working with files as of the date that the DVD was burned.