Honestly, the best advice I can give anyone looking to use SWSE for ANY setting can be summarized in one word:
Don't.
Only DSS is worse as a Star Wars system, IMO, and I've played all three major Star Wars RPG systems enough, on MUSHes and off of them, to say it with some authority. All SWD20 systems, SE included, play like a D20 dungeon crawler with Star Wars stickers slapped over the Dungeons and Dragons labels, to the point that someone I know IRL referred to SWD20 as Dungeons and Death Stars. Balance is known to trigger hysterical laughter, characters are generally cookie-cutter similar, and a gap of a few levels between opponents is known to be insurmountable in most cases. Twinks love this system, because there is so much to abuse; far too much to list, most of which comes from character 'builds'. Which is also the reason why it's not popular with non-twinks who have experienced this.
That said, if you absolutely have no choice in which system you must use, a few tips may make the game at least bearable for players who come to play a game and have fun, and not to 'win'.
First, don't take the names of basic classes too seriously. Some games use these names as a reason to restrict access to them. This is a trap that is easy to fall into. The fact is, there is not a great deal to choose from in terms of classes, and restricting access only makes the cookie cutters that much more obvious.
Second, unless you have a very good reason for doing so (and very few exist), don't restrict access to the Force in chargen, for the obvious reasons. Many players consider Force Slots and other restrictive practices an instant turn-off.
Third, be extremely careful about allowing Dark Siders as PCs. Twinks love Dark Side characters, because they allow all the Force-y goodness without any of the moral obligations inherent to Jedi and other Light Side Force traditions. Especially Sith. Since SWSE is a twink magnet to begin with, if you choose to allow Dark Siders outside of a campaign that is nothing but Dark Siders, expect problems. Trust me, you won't be kept waiting long.
Fourth, consider alternate ways to earn XP, and alternate ways to advance. SWSE advancement is glacial in most cases, and no changes can be made to characters until the next level turns over on the XP-odometer. This is a source of considerable frustration to even the best-dispositioned players.
More as I think of them. This should be a good list to start with.