no wifi after installing windows 7

nevermind this post. i figured it out.

i installed windows 7 64 bit on my dell vostro 2521 and it dont have a connection at all. even through cable or wifi. i managed to get the adapter for the cable connection. but i cant seem to download the correct one for the wifi adapter. please help me.

network controller

PCI\VEN_168C&DEV_0036&SUBSYS_020C1028&REV_01
PCI\VEN_168C&DEV_0036&SUBSYS_020C1028
PCI\VEN_168C&DEV_0036&CC_028000
PCI\VEN_168C&DEV_0036&CC_0280

universal serial bus (USB) controller

PCI\VEN_8086&DEV_1E31&SUBSYS_05971028&REV_04
PCI\VEN_8086&DEV_1E31&SUBSYS_05971028
PCI\VEN_8086&DEV_1E31&CC_0C0330
PCI\VEN_8086&DEV_1E31&CC_0C03

usb2.0-crw

USB\VID_0BDA&PID_0129&REV_3960
USB\VID_0BDA&PID_0129

i downloaded this two files, intalled then restarted my laptop but i still cant see wifi connections. :(

http://www.dell.com/support/drivers/us/en/19/DriverDetails/Product/vostro-2521?driverId=7RVKH&osCode=W764&fileId=3317555993&languageCode=EN&categoryId=NI