Have been playing around with task chain on moodle 2.8.5. I noticed that one of the Michael Rottmeier's hot potatoes tweaks "Find-it a" does not behave as it should when in moodle.
1. bold text instructions bracketed by <b> </b> does not show as bold text.
2. The little hovering hand does not show over all of the words / symbols in a sentence. ( a student will soon figure out where to click on the correct point).
Outside the moodle environment the exercise works as it should.
I tried to upload to your test site but keep getting error messages.
I have attached the files, if that helps...