[CyberBlaster]

Stock means the rom that came with the unit. A custom one is a rom put together from another user. Sounds like your just on the stock one. You can try the update on the Telus site, that might smooth it out, but the custom ones usually add features you might want as well. As for which custom one, thats up to you. As it been said above you will have to see which one has the features you want.