Just as a follow up, here's what I did to get to v0.9.2:
1. In your current client version, copy the %APPDATA%/Bitshares/wallets directory as a backup in another dir. (Export your wallet as .json as well for safety). If you don't have the wallets dir, create it by importing your .json file & running the client.
2. Uninstall your current version and delete the %APPDATA%/Bitshares dir.
3. Install v0.9.2. Run the new client for a couple minutes until a new %APPDATA%/Bitshares dir is created.
4. Copy your backup wallets dir over the one in the Bitshares dir.
5. Run the new client again, enter password, & you should see your wallet there.
6. To load the blockchain, I ran it from the console instead of the GUI (ie. run C:/Program files/Bitshares/bin/bitshares_client.exe). Sometimes it would hang, so I had to only run the client for about 3 hours, exit, and start again. I would save the chain dir each time in case the client crashed & started loading the blockchain again from the beginning. See the sticky "How to back up "chain" folder, to mitigate client failure" as a reference on how to do this.
7. Congratulate yourself because this is a pain in the a*s.