"Powered By MyBB" question?

[ZiNgA BuRgA]

From an objective standpoint, there probably are themes for SMF and similar which mimic vB themes (or maybe not, I haven't looked).  If all you care about is the general look/feel of the forum, it may be better to try researching that first.

Converting forum systems isn't always a nice thing to do (old links to threads probably would die, users get a different look etc), and I generally don't recommend it unless you see great benefits in doing so.

BTW, are you a new type of spammer?
http://community.mybb.com/thread-39344-post-263870.html