opencores.org - Question on project licensing?

I would like to contribute a multi-cycle (slow, but area-compact)
(Hehe, someone else already released a pipelined integer-divider,
to the opencores.org repository.  Gence I'm marketing my divider as
'compact'!)
I am reading through the FAQ, and one part has me a bit confused...

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The 'licensing' portion -- I understand that the 'GPL' license
is fairly restrictive in that it forces derivative works to be
distributed in documented *AND* modifiable form.

My goal is to let *anyone* use my integer-divider as they see
fit.  If they want to use it in a closed commercial project, that's
fine.  It seems like a GPL-release cannot be used in a closed
project, is that correct?

So under which license should I release my divider? LGPL, BSD, etc.?!?

...

Also, is Xilinx Webpack 5.1ISE the final version that will run
under Win98se (no flames please)?  The newer versions refuse to install.