if i have mw2 xp dll's in the mw2 directory and i delete them and put a mod menu dll will the mod menu work???

if i have a mw2 xp lobby in my mw2 director and i delete the dll's and put a different mod menu dll in there will it load up the mod menu

in xexmenu 1.2 if i have mw2 tu6 and mw2 tu8 and i put both of the title updates in cache will i beable to boot up mw2 tu6 and tu8

in xexmenu 1.2 if i have tu6 and tu7 and i put both of the title updates in cache will i be able to play both tu6 and tu7

are u still selling these jags