| | Re: What flash cards do you want?
everything is copyright in one way or another.
any unique creation is concidered copyright with or without the copyright mark. there is no need to register the work with any body or organization. a unique creation is concidered copyright under law at the time of creation. So if you've made a work sheetthat is of your own, you hold the copyright. If you make a worksheets from eslHQ.com it is copyrighted in one way or another, but you can be certain that it's not yours. Legally I think it's Eric's but yours to use. Enough about copyright law...
I believe under MS end user license agreement you're free to use those copyrighted images for your own personal use. You're free to download them and use them in your worksheets.