2) Is it an actual Dinan chip, or one of the ebay fakes? I'm guessing it either was mislabeled or it's a knockoff. Buy an EAT chip from D'sylva Tech (check up top on the forums).
3) *Adaptations* can be cleared by disconnecting the battery and draining the capacitors (or doing a "shogun reset" -- do a search for the procedure). Fault codes that are set (ie - airbag) by certain systems need to be reset by some entity with the appropriate equipment. Find an independent with Autologic or a GT1/MoDIC variants.
on #7 -- do a search for "service interval reset"
best, whit