Congrat's! In a year or two, your camera would've probably been worth next to nothing... the combo gun will be worth more than it is today.
Hmm, about the forend, on mine there is no screw, it's held on like the forend of a single shot shotgun. Pull the tip of the forend wood down (it's spring loaded) it should pop off and then the barrels lift out of the receiver. Since your's has a screw, maybe it's different (?) So DON'T FORCE IT.. Not sure, maybe the action needs to be closed to get it off (?).
look on the savage 24 page, there are exploded parts diagrams I think.
good luck.
