After getting the Intuit email about 2007, and being the software junkie that I am, I took the plunge and downloaded 2007 Premier last night. This is a recount of the install process and what went wrong, which hopefully will help someone else in a similar situation.
The download and install were straight forward enough and all went well. At first run it found our account, I manage the wife's mothers banking as well since she lives with us, and prompted me through the file conversion process. After the conversion the file opened and all appeared normal and well. Unfortunately I did not have much time to explore the new version, but knew I would have ample time today. This AM as usual I opened Q2007 and proceeded to open mama-in-laws account, and as expected was walked through the conversion process. I then downloaded any new transactions into her checking account, no problems. I now went back to our account to download and new transactions. After entering the Password Vaults password I encountered and empty list where normally my FI and password are displayed along with the two options of downloading the latest cleared transactions and balances and to bring my payment information up to date. Everything I tried would not let me edit that list to add my FI, user Id, and password. Finally in frustration I deactivated *all* of my accounts that have online access and deleted the Password Vault. I then re-created the Vault, reactivated my accounts for online access, and was able to download from my FI.
Not considering the above hassle, I do like this version and the improvement to Quicken Home > Home tab. There are other improvements that I have not fully explored, but which look promising.