need help burning BOR mods

i need to know what i need to download to be able to burn these things to my dreamcast. here is what i have now.

dreamcast that does support homebrew and such.
Diskjugler demo
cdr drive

I know i can do these things cuz i already did a homebrew game, but this seems different. here are the mods i want.

nintendo vs sega

mega man battles of the past (?) all i know is it's the one on your site. some thing about a "zero mode" i think.

Sorry if i'm just buggin', but i need to know what to download, where to download from, and what the heck to do once i have it all.

P.S. i know i can play homebrew. I burnt the megaman x demo like game to a disk with Disk Juggler and it worked. but that was what you guys call "plain files" also, yes, i am a NOOB. flame me if you want, just help me.