Latest/safest method for recovery install

I am looking for the latest method for recovery install, and thereafter install lollipop or the most recent OS that will run on this baby. The phone is already rooted. I have read a whole lot but I am suffering from info over load now.

I did install Rashr and RomManager but neither successfully installed a recovery.

I897 has 2.3.5 rooted stock
 
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