Although I have a feeling I could use the shape in PSP. Save it to BMP. Open the BMP in photoshop. mask the object. Convert the selection to a path. Isn't there a way to save a path as a shape? (because shapes can be applied as paths)
now before someone says, "Hey why not simply use the shapes in PSP" I direct you to
Vector shapes in Paint Shop Pro (PSP) are created as vectors, but cannot be exported as vectors for other programs. PSP uses vector shapes as a drawing tool only. To add effects, like drop shadows or texture, you must convert the layer containing the shape to raster format.