1. Moodle allows you to develop content that you are able to present online. You may want to start at
http://docs.moodle.org/en/About_Moodle to give you an idea about just what Moodle is and what you can do with it.
2. You can use a lot of what you've done with Captivate with Moodle - it mostly depends on what you've done with Captivate so far and how much you want to integrate it. If you've made .exe files for your employees, you can make them available to
download and get a report that they've done so, or you can look at making that Captivate file into a
SCORM and getting a lot more interaction with Moodle. You can find out more about SCORM
here.
3. Part of what Moodle does is keep track of your user's
activities. You can view these reports and work with them in a number of different ways. Moodle does not have the capability to print a certificate for you, but this is available as a third party component - take a look
here for more information on the Certificate Module.
4. Moodle can certainly handle your powerpoints - in my experience, teachers often start with documents they've already made and load them into Moodle as resources. You can just let your users download the file, or actually integrate it into Moodle (directions on how to do that are
here.)
5. Your IT department can set up a Moodle install for you, or you can have it hosted. More instructions on getting a Moodle site started
here.
6. You're in a great place to start learning more about Moodle.
Browse the forums,
peruse through the docs - ask questions and
play with Moodle, and you'll learn more and more!
Thanks,
Matt
