I couldn't figure out how to get both pictures into one thread so here is the closeup of the unknown pink flowers.
My guess is a Lychnis, possibly a double flowered L. viscaria.
Jersy guy might be right. There's a double lychnis viscaria named ‘Splendens Plena’. Here's a couple links - the frist one is a picture
I think both of you are right-I recognise the name lychnis-so that's probably what I planted. It Certainly looks like the picture. THANKS!
To get both pictures into one thread, you have to use photo editing software and paste a second picture in with your original, then save the two together. For an example, see my post on our pond: http://davesgarden.com/showthread/24730.html
If you need help on the particulars, e-mail me and let me know the software you have and I can try and help.
HTH! :o) Kimberley