Neverside

AI/EPS to PS?

Hi, all.
Long time no see.
I've got a little problem.
Y'see, I made a poster (God, I love Spongebob) in A0, and I want to print it.
I made the shapes in Photoshop (didn't have Illustrator back then), and copied them now to Illustrator.
Then I saved it as spongebob.AI and spongebob.EPS.
Now, I need to make it a PS (PostScript), because that's the only vector the copying machine wants to read.
What to do?

Any help is welcome.

HELP!!
Anyone?
The deadline is the day after tommorow, and it takes 1,5 hours to print an A0...

Have you checked out with the printing people which format (extension) you should use? It is really odd that the machine won't read .eps, I have to print a project in A0 as well and I'm using .eps.