Touchflo 3 and Manilla 2D Questions

[happytang]

Sorry guys,

Did a search, but there are too many irrelavant threads to find my answer.

This is what I understand so far:

Touchflo 3 is known as Touchflo 2D for the Touch (Vogue)

Here's my question:

What exactly is Touchflo 3 and Manilla 2D? Are these the exact same things? One of the roms shows that 2 of the cabs included are "Touchflo 3.0" and then "Manilla 2D"

Does that mean that I need to download both, or...

I just want to know what exactly is the difference between the two. I'd like to use DHarvey's Black Vista ROM, which doesn't have these integrated yet, but am not sure what I need to install / download.