ding3r, I have followed up with the original poster by email. The 'rename' issue is fixed in build 2.0.56:
http://www.viemu.com/ViEmu-2.0.56.msi
It had stopped working after Resharper went from 2.0 to 2.5, and they renamed the command (from "ResharperAddin2005.Rename" to "ResharperAddin25.Rename"), so ViEmu wasn't detecting it properly any more. This is fixed in the new build.
The reason I had not announced it yet is that I'm trying to fix the other problem he reported, namely, entering insert mode when the quick-fix "Create method XXX" is used. I'm in touch with the developers of Resharper, but I'm afraid I'll have a non-perfect fix (entering insert mode when the quickfix lightbulb is clicked, instead of when the actual refactor is issued) - there seems to be no way to actually detect their command.
I'm aware of the Esc-Enter problem. It is virtually impossible for me to fix, as they detect the Enter to finish the rename, and I detect the Esc to finish it myself. You could try getting them to detect whether ViEmu is present (there is a public interface for that, and I'm happy to help), and to understand Esc as an <OK> keypress too.
You can use the build above, and I'll post here and announce the new build (with other fixes too) as soon as it's ready.
Thanks,
Jon