Dell Latitude E6510 & windows 8 x64

Just a few questions per the E6510 & Windows 8 x64 (yes, I know it is not officially supported by Dell anymore, but my laptop is still well within warranty & usable...so why isn't it supported?).

I found some help at http://en.community.dell.com/support-forums/software-os/f/4677/p/19457153/20240947.aspx & http://en.community.dell.com/support-forums/laptop/w/laptop/4321.latitude-e6510-windows-8-64-bit.aspx here, but I am still having issues with the fingerprint sensor (driver & software), & trying to get triple monitor working with 2 DVI connector monitors & the laptop panel while on the dell PR02X docking station. I have tried the above drivers, as well as the latest nVidia ones, neither one lets me setup the 2 external monitors + laptop panel for the triple monitor setup. I have tried it with dual DVI, dvi + vga, etc. I have tried it on some old Dell 2001PF monitors & newer viewsonic va2446m-led. Don't tell me 3x monitor is only supported Under OEM-loaded windows & only with the OEM loaded nVidia driver.......The NVS 3100M driver recommended by the wiki states "this graphics driver could not find compatible graphics hardware", if I try the latest nVidia direct driver it installs, seems to see the 3rd monitor, but when I click apply to extend the monitor it tells me it is an invalid configuration. Or am I just stuck with getting a usb-video adapter?

Is the eSATA port eSATAp (power over esata - https://en.wikipedia.org/wiki/ESATAp) ? I have tried some esata cases & they dont power on, & when trying with the power cord for those esata cases the device is never recognized by windows.

This poor thing is stuck at 8gb ram max, even with latest bios A15 (I noticed some of the dell servers bumped up max memory with newer bios)?

Thanks!