XP Driver for a TK314 Wireless Network card

Could someone please, please tell me why it is so blankity, blank difficult to find drivers for Dell hardware on the Dell website?  I am looking for the XP driver for the above card, Broadcom does not seem to supply one on their site, and even though I have the model number, above, if I go to my system configuration, I am given a choice of 5 different network cards that are possibilities for my system, none of which are the one actually in it, as least what I can make out.  Mine is a Broadcom, with chipset BCM4318KFBG, not the Asus card, which are the only options given for my system.

Could I suggest to Dell, if anyone is listening, that you just simply, consistently use the same part numbers for all the information on any given part?  Since you know which part is my computer, why not just have the drivers for that specific part come up on a search?

If I do a search for my system an Inspiron Desktop 531 with a TK314 network card in it, for XP network driver, I get an option of: 

Dell Wireless 1370 WLAN MiniPCI Card, Wireless 1390 WLAN MiniCard, Wireless 1395 WLAN MiniCard, Wireless 1470 Dual-Band WLAN miniPCI Card, Wireless 1490 Dual-Band WLAN MiniCard, Wireless 1505 Draft 802.11n WLAN Mini-Card, Wireless 1505 Draft 802.11n WLAN Mini-Card Desktops, Driver, Windows XP, Windows XP x64, Multi Language, Multi System, v.4.170.25.12, A17

This release supports the Dell Wireless 1350, 1370, 1390, 1395, 1450, 1470, 1490, 1500, 1505 series Mini Card, MiniPCI and PC Card devices (not USB)

Now someone please tell me, am I stupid, or is TK314 mentioned anywhere in that list of "gibberish"? 

Could someone Pleeeease help! 

Thanks so much.

Harald