Newbie needs: F828 - Lenses and screws...

[Captain_Cow]

Hi everyone, newbie here with an F828 and loving it.

Just about to freak out because I've had my camera for about a year and a half and I just realized the other day that I'm missing one of the screws near the bottom edge of the lense. There's another screw I found halfway out on the other side near the ACC plug and I'm glad I noticed it before it fell off. How in the world could this have happend?!? No one's come near my camera with a screwdriver. Has anyone ever experienced this?

Also, I'm looking for a good wide-angle lense and I checked the Sony website but the 828 isn't listed anymore in the accessory finder. Help please

Thanks anyone and everyone and have a nice day...