Some 3300 questions

ok.. i have some questions about 3300 y bought it the last week and i play whit it a litte bit...

frist.. y install a few games via usb.. and one of them fail... how i can un-install this aplication


Secound.. the headphone jack on the phone is only for record..or i can plug my headphones or my car stereo....


trirt... someone can tell me where i can find a cheap (very cheap) cable for install wallpaper.. (fbus or mbus i don't know)...


if somebody can answer to me one o more questions I will be been very thankful

sorry for my englesh.. im practisin