Have you ever tried Bounty
From SO FAQ
What if I don't get a good answer?
In order to get good answers, you have
to put some effort into the question.
Edit your question to provide status
and progress updates. Document your
own continued efforts to answer your
question. This will naturally bump
your question and get more people
interested in it.
If, after 2 days, you still don't have
an answer you like, you can offer a
bounty. Slice off a bit of your own
hard-earned reputation -- anywhere
from 50 to 500 -- and attach it to the
question as a bounty. We'll even throw
in 50 reputation to sweeten the deal.
The bountied question will appear with
a special icon in all question lists,
and it will also be visible on the
home page Featured tab.
Once initiated, the bounty period
lasts 7 days. If you mark an accepted
answer, your bounty is awarded to the
answerer (do note that accepted bounty
answers are permanent and cannot be
changed). If you do not accept an
answer in 7 days, here is what happens
at the end of the bounty period:
The highest voted answer created after
the bounty started with at least 2
upvotes will be automatically
accepted. Half the bounty will be
awarded to the owner of that answer.
If there is no answer meeting the
above criteria, and you as the
question owner have not opted to
accept an answer, you forfeit your
right to ever accept an answer to your
question. In any case, you will
always give up the amount of
reputation specified in the bounty, so
if you start a bounty, be sure to
follow up and accept the best answer!
Of course, bounty awards, like all
accepted answers, are immune to the
daily reputation cap and community