Can't I direcly store to my MMCard ???

I can successfully connect to 3650 with nkia PC Suit , i can transfer images & files from my nokia 3650 mobile to my PC very easily, but i can't send any file to my mobile , it just gets dsconnected, why so?? I checked every connection & on win98,2000,XP too.

Every time i want to transfer any file , i can send from context menu only, & only to phone memory, which is limited. I can't direcly store to my MMCard ???

Plz reply as i am not able to store big files(e.g. 3MB) on my 16MB MMC !!

thanks