I did not upload or distribute those packs at all, I only linked to official sites hosting those packs either from the pack maker or with permission from the pack maker.
Edit: Sorry, I didn't see that samiam uploaded a pack, I will remove it now.
Not to be a jerk but texture pack creators really do not like it when other people compile and share their packs without permission.
You can use Project 64 to make your own .htc format pack though.
You can try Mame/ MESS or the stand alone 7800 only version of Mame called A7800 http://7800.8bitdev.org/index.php/A7800_Emulator
Though I did try the game in both Mame and A7800 and the game just crashes out at the flashy boot screen.
As far as I know of that bios line only affects the NeoGeo games. It normally is blank and that is the only use I have ever found for it, though of course there probably is some other use for it but I have never run into it.
I'm not sure where Mame saves the per game bios settings (region and MVS/AVS) but I do know you can (and possibly have to) set it up per game.
You can use either.
If you want to use Mame look in your mame.ini file for the line
bios
change it so it says:
bios unibios33
If you don't have unibios33 change it to unibios32
It just depends on your rom set, if it's up to date then the core without a year in the name.
Anytime you see bunch of cores with years in their name and one that doesn't the one without the year is the most recent code base version and the ones with a year is a snapshot of the code base from that time.
To be perfectly honest I don't know. You could import your games using Mame as the emulator and generate the playlists and then switch the emulator over to FBA afterwards.
You can setup Kat5200 to be portable.
Portable Usage
It is possible to make kat5200 portable, in other words all needed files are stored with the executable. To do this create a file called portable.txt in the same directory as the kat5200 executable and write a 1 in the file. Note that the kat5200.db3 file needs to be already present in the directory.
You could just use the Mame core or HLSL shaders in stand alone Mame.
Just switching from Mame to FBA could be very hit or miss on your games working, they are different rom sets even though there is a lot of crossover.