Designers, Quick Question

[Bama]

We're having some t-shirts made up for an event and they've asked for the logo to be black and white (specifically said not grayscale).

I have the logo in these formats:
.eps
.psd
cymk.eps
.ai
cymk.ai


Which would be the best to use for the t-shirts and how the hell do you change a color logo to black and white?

Thanks,
Bama

[MetaMan]

eps is for illustrator which should be vector, which means the printer should be able to resize your image to any size without losing resolution.

im not exactly sure what they mean specifically not grayscale though.

im no expert in illustrator but thats the best i can do.

o re read black and white, u would just change the colors of the layers to black or white.

[munki]

send it over g... eps...