here is a not great, but okay solution for those of you at work.
I cant believe I forgot about this, because I had switched to it at one point, just because I was bored. If you go to the main home site. there is a drop down menu down almost at the very bottom and for most it will say "RCF 2.0 style". there are two other options there that allow you to view the forums in a different style, neither one of which involve any ads what so ever. while the layout is not even close to optimal it will keep you from getting the pop ups at work. You can actually have it set up so at home you see the forums how you would normally do (including with ads) and at work (or wherever) see just a list of everything. Its a decent work around for those of you in a similar position to me that would get hard core bitched out by the IT guys if something happened.
edit: turns out the drop down is at the bottom of every RCF screen, not just the home page