I hope the OTA goes out soon, because I can't root my phone because I can't download RSD Lite... Actually at this point I'm not even sad, I'm just mad...
Or, see if you can factory reset and then root from 2.01 and then go to 2.2. This though is a pain and you'll likely have to redownload a lot from the market. There's a lot of instructions in the link I posted and also google it.