Just updated to Q08 yesterday. Update went fine. I was prompted to search for any updates. Only problem I had was that it didn't think I had an internet connection (I do.. It's broadband). I told it to "Ignore" and it completed without any further issues. I think it had t do with my firewall (SpySweeper) that is very aggressive in blocking things until I approve. It fond the current database and the migration went faster than in the past.
I just ran "One Step Update". It includes accounts with Chase (2 credit cards) & American Express. I was prompted that Chase required a pw. I entered it and I was asked if I wanted to save it in the vault. After that, the update went without issue.
So far, it's my usual Q update... no issues, no problems....