Restore OSX system from TM to another external drive

If I boot up from my OSX 10.6 install CD on a MacBook with a dead internal HD, can I restore my system to an external usb drive with an older (10.5) bootable cloned backup on it from a current Time Machine backup which resides on a different external drive?
The situation:
A new 500 Gb internal drive for my MacBook has failed, and I won't be in a position to swap it out for another week or so. I have an older 500 Gb external drive I can now boot up from, but it's a few months out of date, and that means it's still 10.5. My current system (10.6) is backed up with Time Machine, on a different external drive. Of course, it's not bootable. So, I wonder if it's possible/easy enough to use the 10.6 OSX install disc to restore the 10.6 TM backup to the external.
Thanks ...

CRhysB wrote:
If I boot up from my OSX 10.6 install CD on a MacBook with a dead internal HD, can I restore my system to an external usb drive with an older (10.5) bootable cloned backup on it from a current Time Machine backup which resides on a different external drive?
Yes. Use the procedure in #14 of the Frequently Asked Questions *User Tip,* also at the top of this forum. Note that will erase whatever's on the destination volume; if you want, and there's room, you could partition the external and restore to the new partition without disturbing the clone.

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