Welcome! I can help you out here. There is a site called Brands of the World which has many eps files of thousands of different logos. I suggest you go to that site and type in lots of variations on what you want to find. For example: SW, Star Wars, ANH, New Hope, ESB, TESB, Empire Strikes Back, ROTJ, ROJ, Return of the Jedi, Faces, DefCol, Special Edition, etc.
I did this sometime late last year and downloaded all the Star Wars related logos, however, the disc that I burnt them to is far from being found. Good luck finding what you need. Sometimes there will be 2 versions of the same logo. Get both and take a closer look at them, one will be a bit sloppy due to someone recreating the logo crappily. The other one should be more polished. I think ESB is the prime example of this. I got the ESB ones again the other day for use in a cover for "Building Empire".
Enough of my ranting! Hope I helped somewhat.
