Someone received our email on a handheld device, and received the HTML version not the text version. How can we fix that?

If the PDA email clients show the HTML version, there really is no control over that. What you could do, is add a new demographic to your user base that would identify weather or not the user has a pager/PDA, and create a rule that would send them a text only message.

Can I send flash items in my email?

Yes, our system can support flash. However, if you imbed your links in the flash items, we cannot track those. Links must be imbedded in straight HTML to be tracked.

I just sent a test HTML message, and cannot click on the links in the email to open/read the article. If I point my browser to the www. location, it links fine though. What's wrong?

It depends on your email client. If you're using Microsoft Outlook, you need to make sure that you open up the message in its own window and not just look at the message through the preview pane (Outlook disables Javascript when looking at a message through the preview pane).