vostro 1510 wireless setting up on Linux

hi.

I got 1510 and it's got intel 4965agn wireless lan card (according to online manual).

I've installed linux mint 7, but my wireless connection can't be established.
my leds above keyboard are lit as wireless hardware is working, but when I add and set up my connection same as in windows (dns, gateway, mask, ip), it won't connect.

I've been bugging with ndiswrapper and I think I've finally succeded in installing those drivers for winxp from dell's drivers web page:
http://support.dell.com/support/dow...d=-1&dateid=-1&typeid=-1&formatid=-1&impid=-1

this is the list of commands I did following this tutorial: https://help.ubuntu.com/community/WifiDocs/Driver/Intel_4965_AGN_WiFi_Driver/Fiesty

and commands:
http://freetexthost.com/dl53wxeqrx

in my hardware drivers it says this:
http://i36.tinypic.com/357q440.png

it was like then since I've installed linux, no matter what I did in ndiswrapper.

I'm now connected to net using lan cable (on linux too).

why isn't my wlan connection working on linux with same setup as on winxp?
what to do about it?

thanks for any help and advice, if you need extra information, just say.