Wifi problem on HpNotebook

[dep0]

Hi, i have just installed Ubuntu 10.04.4 LTS on my hp notebook (cause it was kinda old for a newer distro) but i cannot connect on wifi.
I run the Hardware Driver application a few times but, as it seems, there are no proprietary drivers for my system.
I should also point out that there is a key in my keyboard that handles wireless connection but it seems to lost its use right after the installation.
Any suggest? Any help is welcome.
Thank you in advance for your time.

[daslinkard]

Hi, i have just installed Ubuntu 10.04.4 LTS on my hp notebook (cause it was kinda old for a newer distro) but i cannot connect on wifi.
I run the Hardware Driver application a few times but, as it seems, there are no proprietary drivers for my system.
I should also point out that there is a key in my keyboard that handles wireless connection but it seems to lost its use right after the installation.
Any suggest? Any help is welcome.
Thank you in advance for your time.

Please give the output of

lspci