I assume you mean Ilford XP2, which btw, IS a great film.

Steve's right, in that this film is meant to be used with B&W printing materials. When used this way, your proof sheets and prints are no different than with any other B&W film.

It's only when labs use color printing materials, machine or otherwise, that you tend to get a color cast to the prints. Aside from the fact that these color casts are usually unpredictable, they're often interesting and simulate monochrome toned B&W prints.

Regardless of how your prints are made originally, the negs from this film can always be used to make true B&W prints at a later date.

The film's tonal recording properties are the same as non-C41 B&W film, so any filters you use over the camera lens will have the same effect on the final negatives as "regular" B&W film.