URL forwarding

Hi, more dumb questions from me! :lol:

So, I'm using namezero to forward my traffic to from a snappy domain name to my pages on angelfire, and I see there's a masked and unmasked option. Is one or the other preferable? I see what they do, one just keeps the forwarding address as you browse the site, but will that mess anything up html/affiliate-wise?

Also, when I submit to search engines, should I use my TRUE url or the forwarding one or both? Thanks you guys!

Hosting is so cheap now that I'd think about moving to a paid host. You could lose se hits if the angelfire url appears in the entry that the surfer sees. You'll also have problems with links if you move the hosting later.

I'm using Angelfire's paid hosting service...not the free one. No ads and such...does that make a difference?