I'd agree w/first checking that the meeting hasn't changed times or locations. I had to do some pursuit of meetings in my area, too--one that kept changing locations as the hospital where it was held was undergoing major renovations, and another that could be located only by word of mouth since the local intergroup wouldn't list them b/c they used "non-approved materials" at their meetings (the AA Big Book, which is apparently OK for AA to use but not Alanon...).
I think this might be the thread about starting your own meeting that Lexie mentioned
http://www.soberrecovery.com/forums/...non-group.html
And if none of that works, then your remaining option might be this
http://www.al-anon.alateen.org/electronic-meetings If you're finding it hard to read, click the link just above the top of the document to open it full screen.
Good luck, hope you find an answer to the problem!