craftgrrl | mod/modge podge questions

i know there is an faq section on it, but i'm still confuz-ed.

i made a paper collage on a book i hollowed, and i want it to last. i have a can of spray fixative, but i've only ever used it on charcol drawings. i don't really think it would work....anyway. right now all the cut-out images are dry-mounted with rubber cement on the inside covers of the book.

collaging being awesome, i figure there has to be some ladies who've done this. i've never used mod podge before, but my understanding is that it could be used to preserve the collage.

i'll post pics when it's dry and finnished. gotta keep busy now that the boy is back home and i still have another month here without 'im.

thanks very much!