I am using Dreamweaver CS5.5 and when I try to insert this gallery I get an error message: "dmxBrowser2 is not defined". What does this mean and how can I get this to work?

Hello Mark,
Please download and install the DMXzone Extension Manager: www.dmxzone.com/go/22670/dmxzone-extension-manager-for-dreamweaver and use it in order to install the extension(s).
It offers much greater install/update experience, than Adobe EM. Also it does not require entering your username, password and serial number for each of the extensions that you install.

same kind of prblem "typeerror:dmxbrowser2.openurl is not a function"
animated thumbs gallery 2 installed as a upgrade to version 1 using dmx extension manager 1.0.12
uninstall reinstall, no change same error
same problem dreamweaver cs6(english) xp sp3(french)