I have a blackberry bold 2 (9700) with

: Bold 2 hybrid help-munch_2013_05_18_093141.png

i was wondering if i could run OS 7 OR 7.1 Apps on the phone but i have OS 6 and the app version is OS 7.1

and one more thing : could i have "power save mode" (from the official OS 7.1) & "application resource monitor" on the bold 2