Here , iam there to help out...
1--> Rooting the phone.
There are two ways one is from mobile itself and other is from pc..
From mobile..: download ginger break.apk and indtall it on ur device,then root ur mobile,there are two types temporarily root and permanent root..you select which ever u need.
From pc..: download super one click and install it on pc.run it and root the mobile.(on usb debugging on mobile).
Thats all mobile rooted....
2. This to backup ur mobile..,:
Download the costum recovery (google it with u r device model).
Install recovery .apk and it asks for .img file just now downloaded ,show it where is that on ur sdcard to that recovery manager.apk.
Now u Reboot into recovery i.e, u can go to clock work mo(cmw).
At there u see backup and restore.select that,ur stock rom will be completely backed up..
It will be placed in ur sdcard.
Whenever u need u can restore it.
3: to install costum rom.
Google it with ur device modle,download it and flash in cmw ^.
Please note backup must be done to any thing...so back up..
Oooooooff tired of typing , hit thanks to refresh.
---------- Post added at 05:42 PM ---------- Previous post was at 05:36 PM ----------
Got my points?????
Ginger break----> http://www.2shared.com/file/0qXkrqme...reak-v120.html
Recovery manager---> http://mediafire.com/?bf78w6qgee1w82r