You have hit the mark with Captivate.
As far as I can see Captivate will work very well for you.
Firstly you do not need Flash to run captivate. Second, you can
pass your project files to other colleagues and assuming they also
have captivate they can edit where need be.
Most importantly It's very easy to make and edit training
applications with captivate, meaning you can get you content out
quickly and you can be confident that you colleagues will be able
to easily edit it.