Hi Stew I'm sorry but not surprised to hear you are having payment issues. I've had my own problems with a publishing house that I feel showed
a complete lack of respect for contributing photographers. I my case it took 12 months for me to receive payment from Scuba Diving Australasia.
They had initially assured me payment would be prompt. After trying for months to resolve it directly with them I ended up starting a thread about
it and referred them to it. A number of others posted similar issues with the same publisher and I had others contact me directly via email about
their own issues. I have had nothing to do with that publisher since and have warned others to do the same. SDAA is owned by Asian Geographic
Magazines which also publish Asian Diver. See here- http://wetpixel.com/forums/index.php?showtopic=36038
Who is the publisher of your image? Stay persistent and don't give up. You'll get your due rewards.
Not all publishers are bad and all the others I've dealt with since have been prompt in payment and good communicators eg. Bonnier Corporation.
Cheers,
Jim