Dell Precision M6500 driver install - Which ones?

Hi, hopefully not hard questions:

Question 1:

I found the installation guide (however it's not listed at Download&Drivers site):

http://www.dell.com/support/Article/hu/hu/hubsdt1/SLN285343/EN#IDT_92HDxxx_HD_Audio

It's point 5. lists: Dell Control Point Security Manager - System Devices

I went to the Download&Drivers site:

http://www.dell.com/support/home/en/en/hubsdt1/product-support/servicetag/2673yp1/drivers/advanced?dcp=dndtag

Here, there are 2 files for me:

1. Dell ControlPoint Security Manager Application: It's not for M6500. (View details) True? (Why is it listed at M6500 drivers site?)

2. Dell ControlPoint Security Device Driver Pack: It's name a little different than at point 5.

Which ones do I need?

Question 2:

Point 10. lists: Conexant Modem Daughter card (MDC) Drivers (little lower name is different: Conexant D330,HDA,MDC,v.92 Modem, little lower: Broadcom USH driver)

There are 4 files at Download&Drivers site, however not D330 but D400:

1. Conexant D400 USB 56K Modem Driver: It's not for M6500. (View details) True?

2. Conexant D400 External USB 56K Modem Application:  It's not for M6500. (View details) True?

3. Conexant D400 External USB 56K Modem Diagnostics Utility: Is it driver?

4. Conexant D400 External USB 56K Modem Utility: It's not for M6500. (View details) True?

Which ones do I need?

Thanks in advance,

Peter