How to change .tweak

[bobogaz]

Hi, im having a bit of problem changing .tweak on the objects winrar. i can change those ones that are not in winrar folders, just normal folders in the bf2/mods/pr_sp_08 but when i try access the objects/ (winrar) objects or in leves/*a map*/(winrar) - it keeps loading for ever then when i try close it, it says blah blah (i think its notepad) is not responding.

could someone help me?