No problem about the questions. We have a lot of features, and it can take a bit to work them all out. Glad to help however we can.
As for border, there's no way to remove it. If you leave it blank, it defaults to the Facebook blue. The best I can recommend is that you set it to the color of the background it's set in.. and then it will seem to be invisible, even if it's not.
Hope that helps,
Alex