try adding in some short video clips, voice samples and modelling pics for interest. As to actual informational content, try emailing the dev team to get more on the history of the mod, or looking in the wiki.
Also depends what you plan to do it on, are you just going to concentrate on the mod, compare it to other star wars games, compare it to other mods, do a presentation on mods and use FS as your example etc.
I work with powerpoint a lot, part of my job is training and briefing, so have a think about what it is you want it to be about, using the examples above. Then, how long does your presentation need to last, and have you been given a set format for it. Give as much info as you can and I'll do my best to help you out.
Bite my shiny metal Tie Fighter!

