Do you use Firefox? Did you just download the newest Flash 8 plug-in? Do you have the wonderful Ad-Block extension? Are you tearing your hair out because Flash imbeds don't display? Well, boy, do I have the solution for you! It's coming up in the next paragraph!
(Long version) Alright, the solution is in this paragraph! Go to the Tools thingie on Firefox. Now go to Ad-block's section, and look in the preferences, then the options. Look over there in the corners: the Obj tags thing! It's talking about those little index tags on the flash imbeds. Yeah, trun that off. Re-start Firefox, and you're ready to go.
(Short version) Turn the Ad-block object tags off.