Which BT card for my 2373-14G

[koden]

Sorry to poste new post.
But my search and earlier answers have not helped me.

I have a T40 2373-14G.
I have installed a wireless card and it's working fine
It's a Atheros 802.11g Wireless LAN MiniPCI Adapter

I would like to install a BT card but I can't find my T40 on this list:

http://www-307.ibm.com/pc/support/site. ... T40%7C2373

1. I have antenna in my T40, so why can't i see 14G in this list?

2. What is the diff. between BT II and BT III ?

3. Is it right that one antenna has to be used for the wireless card and the other for the BT card and this won't slow down performance...

Or maybe i only have antenna for wireless. On IBM I can find this:

Original description: P M 1.3GHz, 256MB RAM, 30GB 4200rpm HDD, 14.1 XGA(1024x768) TFT LCD, 32MB ATI Radeon 7500, 24x-8x DVD(slim), Modem(CDC), Ethernet(LOM), Wireless upgradeable, Secure Chip(TCPA), UltraNav, 6 cell battery, WinXP Pro

nothing about BT.
So maybe i need BT modem and antenna???