What Must I Have To Install ICS Or Something Like It?

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http://androidforums.com – Dont Yell Yet.. Ive Read Threads On How To Install ICS And Stuff.. I Got My Phone Rooted Thats All.. Is There Any Apps Or Anything Else I Should Have On My Phone Before I Download Anything And Try To "Mod" My Phone? Any Backup/Restore App Or Anything, Juss Double Checking So I Dont Eff Something Up From Being Careless, Fairly New To This, I Did Have CWM7 On My Ascend From MetroPCS.. Any Help Please? (General)