I'm still not sure I understand. If I click on the "Buy now" menu item ("Go online here") of the Trial Version of my program, I get taken (as I should) to
www.sudoku.com/buy.htm . There's nothing there about a problem in March...
Could you possibly have an old cached version on your computer and (because of the browser settings you employ) the up-to-date version is not being fetched?
There was indeed a problem in March, but it lasted less than 12 hours. I posted a notice on the Buy page as a precaution. The problem was fixed very quickly.
- Wayne