Try saying "IE8 hell, IE8 heaven" over and over. That's where I am. It's an unfun, Microsoft-packed tongue twister that's blighted what should have been a bumper worksheet crop. In plain, honest English? Well, it's not often I would write an update to announce one, solitary fix, but this is an important one: for anyone who's been using the site, and suddenly discovered that it doesn't work anymore, you can start breathing again - www.worksheetgenius.com (should) now work happily with IE8.
And that's it. I'd like to say a big thank you to everyone who e-mailed in to let me know there were problems.