Thanks...I do it successfull...It run perfect...The steps to rooting will be the same. The most important thing is to get the correct firmware for your device. This site should have it, but you'll have to fish.
www. 51cube.com/tools.asp? (remove extra space)
This site may have some answers http:// www.51cube.com/bbs/forum.php?mod=viewthread&tid=32628&highlight=u9gts
My daughter has one of these too, but I have not rooted it. I did, however, use the exact steps posted by "U9GT" above to root my U8GT and it worked flawlessly.
Hope this helps.
My android is Cube U9GT_S
I root it as below:
1. Update firmware to 1.01: http://115.com/file/clti1864
2. After that, I run gingerbreak v1.2 to root this android: yijianRoothanhuaban_GingerBreak__mumayihanhua__V1.2_mumayi_68c79_(1).rar
*Notes: Version 1.01 update to Android 3.0 User Interface.
Thanks a lot!