looks interesting... But the thing with paying is that... you've got to pay! And nowadays the freeware community is growing and quality softwares are available:
I regularly use hotpotatoes with which you can create a variety of exercises, print some (crosswords, cloze...):http://hotpot.uvic.ca/
there also is Netquiz, although it is in French: published by the Canadian center for teaching research.. or something: http://www.ccdmd.qc.ca/ri/netquizpro/
and for crosswords a good one is eclipse: http://www.greeneclipsesoftware.com/eclipsecrossword/
This is for general information, I'm not trying to deter any potential buyers from getting your soft.
Especially that your soft is more focused on producing classroom materials, whereas the softs I quoted are more for multimedia integration.