http://bugs.winehq.org/show_bug.cgi?id=10018
--- Comment #3 from Dan Kegel dank@kegel.com 2007-10-19 17:24:09 --- Here's another report with more detail, perhaps: http://appdb.winehq.org/objectManager.php?sClass=version&iId=2631&iT... "Installation (in version 0.9.46) wouldn't allow me to enter a serial number. I just selected the option to install as a trial version, which worked."
So maybe it's just a UI issue!