This procedure was tested on Windows 7 64bit and Android 2.2.2 Froyo.
Installing USB drivers
1. Download USB drivers from here http://www.mediafire.com/?5z6i5cv8l6br292
2. Connect your phone to USB on your computer
3. Follow these steps to install USB driver http://developer.android.com/sdk/win-usb.html#Win7
4. Download SuperOneClick v2.2 from here ftp://shortfuse.org/SuperOneClick/Pa...-ShortFuse.zip
5. Extract ZIP content
6. Right click SuperOneClick.exe and select "Run as administrator". This is very important!!!
7. Wait till it says that your phone is rooted
Installing unofficial Clockwork Mod Recovery 184.108.40.206
8. Download and install Root explorer from here http://getandroidstuff.com/download-...r-android-v23/
9. Follow these instructions http://forum.xda-developers.com/show....php?t=1343276
With this procedure I successfully rotted my phone and installed recovery 220.127.116.11. With this recovery console u will be able to install whatever ROM u like. Just remember to create backup of your official ROM first!!! I needed it badly when I discovered that new MIUI for U8800 Pro is not working as expected.
Backup can be a life saver!!!