The files are java based, so you shouldn't be having any problems reading them, if you do have, you should downgrade your java to version 6 u33 (Dont ask me why, but somehow it works with that version, atleast im 100% sure about that)
About advertising officially, like a banner on Rune-gear, I dont reckon that would be possible as of now, as it probably cost a decent bunch of dollars, which we dont have at the moment. We arent focusing too much on being money based server, we try to please our players, and give them extra benefits by getting Subscribers, so we're able to improve the security and whatnot constantly.