For Excalibur 4, the easiest way to get it visible to Vegas 6 is to simply run the installation program. Now that Vegas 6 is installed, a new option will appear allowing proper installation into Vegas 6.
For Excalibur 3/2/1, Neon, and Tsunami, You will need to copy the appropriate folders from the Vegas 5 "script menu" folder to the Vegas 6 "script menu" folder.
Sorry Ed--how does one copy from Vegas 5 script menu folder to Vegas 6 Script menufolder----do you need to Create a new Vegas 6 folder and just copy the scripts to there?