If you just want to find your modle number it's the same on almost every Android distribution. Just open up your settings and then go to the about phone tab. It should be the 7th entry down.
In terms of backing up your Android device check this article on how to save your data on your Android handset
Thank you for the answer.
I know my model number, it is U8510. I rooted the phone and installed the ROM from Huawei U8650 which works fine on my phone.
I also know how to do a backup with Titanium Backup.
My problem is another... I want to backup my ROM! Titanium Backup doesn`t backup the ROM, only apps and data...
I have ROM manager but when I want to install ClockworkMod (from ROM manager) it asks for the phone model. I know my phone model but I it is not in that list. The list from ClockworkMod. I hope I made myself clear.
I want to know how to BACKUP my ROM, with ROM manager or in a different way.