I've just bought the cable. If anyone can told me, frm where I can download SonyEricsson J300i cable driver or software.
Thanks

J300 cable driver............Ummmn...which type of cable u have. Usb, serial...or some dku2 type...it may be written on the cable..or ..............................wait a min. didnt u get any cd with that ????

Maybe its just Plug and Play!!
You should try the Sony Ericsson Website for details about this Data Cable Problem of yours

Thanks Guys.
It was serial cable ,,,,I installed the software "sonyericsson pc suite" and it just run it................. its working good ....Thnks for all help...