Hi DESTRO
for the importation of your Profile 2 possibility's
1>> if you install COD on C drive >> go to C: Program files x86/activision/call of duty 4 - modern warfare >>> here you see a folder named "players" you c/c your profile on the folder >> run the game choose profile and normally it's work
2>> take the same 1 tech and after you go to C:\Users\"yourname"\AppData\Local\CallofDuty4MW >> you c/c your profile on the folder >> run the game choose profile and normally it's work
when this method doesn't work, run cod in solo for create a profile and repeat the manipulation 1 and 2
when this doen't work again search a 55 level crack on internet for crack your profile to 55 level (it's not a hack just a level up) the best is Easy Account COD4 Lvl 55 (i use it to level up my son cod4 game)
have a nice day
Bebertblind