Hey guys....to be honest i am extremely lost wondering around in linux.
I tried downloads the broadcom windows drivers and later found out that the dont support my chipset (bcm4318). I tired using ndiswrapper and i was able to install the .inf file thats windows uses. Any suggestions would be greatly appriciated.

lspci
0000:00:00.0 Host bridge: Intel Corporation Mobile 915GM/PM/GMS/910GML Express Processor to DRAM Controller (rev 03)
0000:00:02.0 VGA compatible controller: Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller (rev 03)
0000:00:02.1 Display controller: Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller (rev 03)
0000:00:1b.0 0403: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) High Definition Audio Controller (rev 03)
0000:00:1c.0 PCI bridge: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 1 (rev 03)
0000:00:1c.3 PCI bridge: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 4 (rev 03)
0000:00:1d.0 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #1 (rev 03)
0000:00:1d.1 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #2 (rev 03)
0000:00:1d.2 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #3 (rev 03)
0000:00:1d.3 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #4 (rev 03)
0000:00:1d.7 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB2 EHCI Controller (rev 03)
0000:00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev d3)
0000:00:1f.0 ISA bridge: Intel Corporation 82801FBM (ICH6M) LPC Interface Bridge (rev 03)
0000:00:1f.1 IDE interface: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) IDE Controller (rev 03)
0000:02:00.0 Ethernet controller: Broadcom Corporation BCM4401-B0 100Base-TX (rev 02)
0000:02:03.0 Network controller: Broadcom Corporation BCM4318 [AirForce One 54g] 802.11g Wireless LAN Controller (rev 02)

lsmod
Module Size Used by
nls_utf8 2176 1
nls_cp437 5888 1
vfat 13440 1
fat 53020 1 vfat
rfcomm 40216 0
l2cap 26244 5 rfcomm
bluetooth 49892 4 rfcomm,l2cap
ppdev 9220 0
i915 20608 1
drm 73236 2 i915
cpufreq_userspace 4696 0
cpufreq_stats 5636 0
freq_table 4740 1 cpufreq_stats
cpufreq_powersave 1920 0
cpufreq_ondemand 6428 0
cpufreq_conservative 7332 0
video 16260 0
tc1100_wmi 6916 0
sony_acpi 5644 0
pcc_acpi 12416 0
hotkey 11556 0
dev_acpi 11140 0
container 4608 0
button 6672 0
acpi_sbs 19980 0
battery 9988 1 acpi_sbs
i2c_acpi_ec 5120 1 acpi_sbs
i2c_core 21904 1 i2c_acpi_ec
ac 5252 1 acpi_sbs
ipv6 265728 6
sg 37920 0
sd_mod 19984 2
dm_mod 58936 1
md_mod 72532 0
parport_pc 35780 0
lp 11844 0
parport 36296 3 ppdev,parport_pc,lp
af_packet 22920 2
joydev 10048 0
tsdev 8000 0
usb_storage 74176 1
b44 25740 0
mii 5888 1 b44
pcspkr 2180 0
scsi_mod 139496 3 sg,sd_mod,usb_storage
rtc 13492 0
psmouse 36100 0
serio_raw 7300 0
shpchp 45632 0
pci_hotplug 29236 1 shpchp
snd_hda_intel 18964 1
snd_hda_codec 154672 1 snd_hda_intel
snd_pcm_oss 53664 0
snd_mixer_oss 18688 1 snd_pcm_oss
snd_pcm 89864 3 snd_hda_intel,snd_hda_codec,snd_pcm_oss
snd_timer 25220 1 snd_pcm
snd 55268 8 snd_hda_intel,snd_hda_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
soundcore 10208 1 snd
snd_page_alloc 10632 2 snd_hda_intel,snd_pcm
intel_agp 22940 1
agpgart 34888 3 drm,intel_agp
evdev 9856 2
ext3 135688 1
jbd 58772 1 ext3
ide_generic 1536 0
ehci_hcd 34184 0
uhci_hcd 33680 0
usbcore 130692 4 usb_storage,ehci_hcd,uhci_hcd
ide_cd 33028 0
cdrom 38560 1 ide_cd
ide_disk 17664 3
piix 11012 1
generic 5124 0
thermal 13576 0
processor 23360 1 thermal
fan 4868 0
capability 5000 0
commoncap 7296 1 capability
vga16fb 13704 1
vgastate 10368 1 vga16fb
fbcon 42784 72
tileblit 2816 1 fbcon
font 8320 1 fbcon
bitblit 6272 1 fbcon
softcursor 2304 1 bitblit

Did you could try to see if your kernel has the bcm43xx driver built?Ahh, if you have the module then you will need fwcutter.

modprobe bcm43xx

WARNING: Error inserting ieee80211_crypt (/lib/modules/2.6.15-26-386/kernel/net/ieee80211/ieee80211_crypt.ko): Operation not permitted
WARNING: Error inserting ieee80211 (/lib/modules/2.6.15-26-386/kernel/net/ieee80211/ieee80211.ko): Operation not permitted
WARNING: Error inserting ieee80211softmac (/lib/modules/2.6.15-26-386/kernel/net/ieee80211/softmac/ieee80211softmac.ko): Operation not permitted
FATAL: Error inserting bcm43xx (/lib/modules/2.6.15-26-386/kernel/drivers/net/wireless/bcm43xx/bcm43xx.ko): Operation not permitted

Try it as root.

i did...same thing

btw im running ubuntu 6.06 LTS x86

Also when i used ndiswrapper to install bcmwl5.inf it says its installed but its an invalid driver.

OK, a couple of things. First, don't use bcm43xx, it has trouble with your chipset. Instead, blacklist it by adding it to your /etc/modprobe.d/blacklist file so that it doesn't load. It will conflict with ndiswrapper and keep it from working.

For ndiswrapper, did you have the bcmwl5.sys file in the same directory as bcmwl5.inf when you installed it?

Try
After its installed, a script should appear asking if you want to fetch firmware (say yes).
Should work after that.