congratulations SGB I know you a super excited but don't be upset if some don't make it in the long run. Seedlings can die from a multitude of reasons but it's okay. It's better to learn with free seeds than seeds that cost 10, 20, and even 100 bucks for just 5 or 6 seeds like those sold on the lily auction. if you want to buy some cheap named daylily plants check out some of the classified ads on this site.
http://garden.org/thread/go/53...
http://garden.org/thread/go/54...
http://garden.org/thread/go/53...
http://garden.org/thread/go/53...
Also for cheap daylilies from online vendors you can check out
Smokeys Daylily Gardens
http://smokeysdaylilygardens.c...
&
Gilbert H Wild
http://www.gilberthwild.com/DA...
There are many others sites as well but these 2 offer plants as low as $4 per plant
Good luck with your seedlings and we all look forward to many more updates