I bought a Epiphone SG special VE and there is fret buzz and the neck of the guitar seems pretty flat. I tried to adjust the truss rod, but it is really hard to move, and there are no guitar stores near me where I can take my guitar to get checked out by a professional.
Before you tighten the truss rod, it is imperative that you clamp the neck into the position you would like the neck to be. The purpose of the truss rod is not to pull the neck into position, but simply hold it in position after it has been moved there by other means. It is possible to damage your truss rod by attempting to force it to do the positioning of the neck. I recommend that anyone wishing to make adjustments on their guitar, first read one of the books available on how to do this kind of work. Dan Erlewine has written a plain spoken and thorough step by step book, that I'm sure you can find a copy of by googling his name. Approaching from this direction will hopefully prevent harm to your instrument and allow you to learn how to care for it and keep it in great playability condition. It is a small investment that will pay off in big ways.