I moved a clients site from one provider to another.  Everything worked except K2.  The items created with K2 on the old server no longer shows up as editable pages on the new server.

Try
Akeeba Backup Pro and the kickstart that comes along with it
I have moved sites with that tool very eaisly

Thank for the reply but the site is already moved and the old server is no longer available.

When you check the new site with phpmyadmin is the table jos_k2_items there and populated?