Do I need an interface?

[rack_b]

Hey guys!

First post,don't kill me please! I just got a Virus Rack (b?) from ebay.
(470 US $).

I use a Yamaha MM6 for a MIDI controller keyboard and listen straight out of the virus front headphones jack.

Later I would like to try some sound sets but really I have no clue how to go about loading banks or patches onto the virus.

To add to my ignorance,I admit I am a real moron when it comes to dealing with computer programs. It took me about a month of fiddling with nuendo2 before I managed my audio signal to show up in it. (still don't know what did it but it works now)

My question is: To be able to load some sounds into the virus will I need a midi interface? If so, could someone suggest a decent one to get?
If not,what do I need?

What if I found a few sounds that I like in every bank so when it comes to loading a soundset is there a way to save these few presets from being wiped out?
Sorry for the questions! If someone could give me a rundown of a tipical loading process and what's the setup that would be very kind!
I just like to play live for my own amusment and make an audio recording here and there.
( I have a Motif-Rack and been using it this way in multi mode.)

Thank you for your response!

Barna