http://www.tigabyte.com/default.html
You can download HyperNext for either Macintosh or Windows free of charge.
You can also download a large number of sample projects:
A wonderful way of learning how to do a few useful things in LiveCode would be to "copy" these projects in LiveCode.
By "copy" I mean two possibilities:
1. Run each HyperNext project in HyperNext Player and then imitate the functionality of each project without looking at its HyperNext code.
2. Open each HyperNext project in HyperNext Creator and use hints from the HyperNext code to make clones in LiveCode.
The fact that to do #2 would involve learning the HyperNext language would not be a bad thing either.
