Frustrated With NeoDS

I've tried many different tutorials trying to get the bios converted and working, and i just can't figure it out. Is it possible that someone could supply me with the US bios already converted so that way i can get it up and running???
If not, can someone please help me figure it out how to actually convert it???

Have you read the actual readme that comes with it? (at least, if you download it from http://linfoxdomain.com/nintendo/ds/ it comes with the readme)It's got some pretty good step by step instructions.

Just get it yourself. And yes, read the readme. It's pretty easy to convert really.

What about the roms? All I have is roms with extensions .npc and I saw a tutorial that mention the roms to be in .bin

The converted ROMs once done will be in .neo files. Put those ROMs and NeoDSConvert in the same folder. And then run it.