Hi Tim,
First off If I were to be doing the course, i would look at the objectives for the course, or success criteria rather than time spent gawping at a page. 6 Minutes on one page is a loooooooooong time if you have already got something..
If it must be a certain length, consider using Video, audio and animation as well as testing their knowledge etc. That will make them think, retain more and take ownership of what idea you want them to absorb.
But first off i would start with what you want the participant to have learned, absorbed etc and what use it is to the organisation.
A course that would make me sit and wait before moving on gets me cross, bored and likely to click anything to crash out of it.
You could develop a course within Powerpoint and export it to include on a platform, or use in Kiosk mode on a computer - low development costs and easy to change it later.
Some people would in the past have done a custom flash course, but that really is overkill for what you want.