In-game ads and stuff

Today I was playing around with quakelive's insides, I always wondered what's the path to the in-game billboard ads. For anyone interested, they're in pak00 and the path is "textures/ad_content", insides there's ad1x1.jpg (256x256), ad2x1.jpg (512x256 - the typical big billboard), ad4x1.jpg (1024x256) ad8x1.jpg (1024x128) and adbrightoverlay.png which is present on space map billboards (special effect thingy, cba to explain). This will be my first movies with custom ads, and that will most probably be it when it comes to custom stuff, I'm not a big fan of these cpma weapon effects and particles, sorry.