Hello Chameleon
... long time since I spoke to you my friend, where were you lately ?
Regarding that "wafer biscuit" skin, it's name is Low Res skin and it's created by Alwil guys, Martin I think. As it's name says, it's low res and it's recommended for low-resource systems. Try other skins, there is a plenty of all kind of skins in avast! download section.
As far as your avatar goes, I think it's fine this way too... you don't have to have my signature unless you speciafically want one. In case you still want the old one, just visit my forum's avatar galery here:
http://forum.avast.com/index.php?topic=8340.0Just scroll down and you'll hit your old avatar... hope this helps !
Cheers !