I have Nokia 3230, similar to the 6600 you can get the UC browser which has a built-in download manager with the option to save the file wherever you want. Try logging on to
www.uc.cn from the built in browser. You can download the UC Web browser, its free. I've used it download stuff like Nvidia's video card drivers etc. on the 3230 so you shouldn't have much of a problem using it.