I use Chapura's PocketMirror 4.1; there's a "standard" and a "pro" version -
you can check the differences out at
www.chapura.com. I've always used the
pro version, though both support Outlook 2007.
As with any update like this, I always backup both my Palm (to the SD card)
and my PST file before making changes. That way *if* anything goes wrong,
you have your data current on both sides.
You can download a 7 day trial of PocketMirror Standard (not pro) if you
want to test it out - make sure you pick the right version, as the XT
version works only with newer Palms (since the Tungsten T3).
Hope this helps.
Mike