Does anyone know what the problem is if I upload a file, mainly a pic, get to the screen to choose either popup image or embedded image and then when I click on one of those, it does nothing? any ideas what the problem would be? someone suggested that I have a popup blocker but I haven't ever downloaded one. is there a way I can tell if I have one on my system?
thanks!

If you are using IE6, there's a blocker built in and it's on by default. Go to the Tools menu, select Popup Blocker and then Popup Blocker Settings...

You can add your domain to an "allowed list" so you can see popups on your own site.