I am by no means a pro at this but this is what I did:
1. remove HTC Sync from your computer
2. Install HTC Fastboot Drivers (
http://downloads.unrevoked.com/HTCDriver3.0.0.007.exe)
3. Download Superuser (
http://goo-inside.me/superuser/su-2....fgh-signed.zip) and put on your SD card
4. Put your serial number (S/N located under battery or on box) where indicated
5. Download the revolutionary-0.4pre3.zip when asked
6. Write down your beta key
7. Extract revolutionary-0.4pre3.zip somewhere you can find it
8. Make sure you are connected using the HTC Sync option on your phone
9. Check that USB debugging is enabled
10. Run revolutionary.exe from the revolutionary-0.4pre3 folder
11. Input the beta key where requested
12. Selected either Y/n to install recovery (I selected Y)
13. Select Recovery (Use the volume up/down keys to move and power to select)
14. Select install from .zip
15. Scroll down to su-2.3.6.3-efgh-signed.zip and hit the power button
16. Reboot
Congratulations you now are rooted and have superuser privileges. Now go find a ROM you like from one of the many talented Chef's out there (Be sure the ROM is for the Evo as ROM's for other devices will not work). Put the ROM on your SD card and boot to hboot (Power on + volume down) and select Recover, select install from .zip, select the ROM and hit the power button.
Be careful as you can do permanent harm to your phone with root privileges. If you need to take your phone to Sprint for repair make sure you flash the stock ROM located at
http://forum.ppcgeeks.com/cdma-htc-e...pped-roms.html .
I hope that helps and if you are a pro and I missed something let me know.
-Travis