Check out car-part.com
. You may get lucky and be able to find what you're looking for in a junkyard near you. Keep in mind, 2009-2013 Matrices will also have these same parts.
If you're so inclined, here's the info for the Matrix shift boot
. This same part has been discontinued from GM.
Unfortunately, it appears the trim piece behind the interior door handle is not available on it's own from GM or Toyota. If you don't have any luck with junkyards, your best bet will probably be to check eBay for 2009-2010 Vibes and / or 2009-2013 Matrices that are being parted out and see if they will sell you this piece seperately.