I'm not sure microsoft will support it, since it's a modified packard bell version. I will have too contact packardbell's support about it. WPABALN.exe controls it, and that aint hard to crack, or at least not in sp1. Anyway ive got plenty of spare Windows xp OS lying around...
Im not sure i will bother to get DDR2, or atleast not yet since that will probaly be rather expensive to get 2gb for. Anyway my current RAM is good.