Two-column article question

[Robert Kerr]

I'm writing an article for publication, and the standards are such that
the article need to be two columns, without page numbers at all.  Also,
they'd like the abstract to be centered (ie. not have the two-column
format begin until after the abstract). 
I can't seem to get the abstract done correctly, and I'm using the
pagestyle empty, but I still get a number on the first page.  How can I
turn that off?
Any help would be greatly appreciated.

Thanks
bob