The other issue may be a java-script issue or it could be an internet provider issue. There is not a function that blocks images. Even guest can see images when they visit the site. Some of the functions require Java-script to be enabled. These are mostly functions and links throughout the site. Try turning these settings on and see if that helps.
What browser are you using? OrchidTalk is designed to be used by FIREFOX, but Internet Explorer, Opera, and Safari browsers are all compatible.