1. Download and open 'Rom Manager'
2. Flash alternate recovery
3. Reboot normally
4. Open 'Rom Manager' again
5. Flash Clockworkmod Recovery
6. Than download CM7 & have fun
Questions?
You can also flash RaidZero's Recovery. It's quick on backups, restores, and more options. U can find it under droid hacks> custom roms> raidzero
I think lol