How to root Android phone X8

I do it on windows xp sp3 (before I try to do on win7 32b)
1. Install Sony_Ericsson_PC_Companion_2.01.078_Web
2. Install .net framework 2.0
3. Connect phon to PC with activated USB-Debugging (DO NOT MOUNT THE SD-CARD!!!!)
4. Wait a few seconds (to recognized phone by system)
5. Root by SuperOneClickv1.3.0 (from topic ) source