Well, looking at it's specs, it doesn't look like it'll be wireless capable. So, first thing first; set it up on one of the computer. As of currently now, are all the computers able to interact with eachother? Such as share files to and from eachother? If so, all you got to do is share the printer and everyone should have access. Look at one of the above post for that.
If they aren't, you will have to set your computers up to be able to network eachother through the linksys router first.