You shouldn't have to move any files into the plugin folder as K-Meleon will auto-detect the JRE installation. You don't need to change the "Identify Browser as" setting in the Privacy section. The default is "Default" even though it doesn't show up that way. I realize now that the documentation might make that a little confusing. I'll revise that to make it more clear.
See the following in the Release Notes about Java:
Test with about
lugins to see if it is properly detecting your JRE installation.
If you still have questions, please e-mail me. My e-mail is available under Help - About K-Meleon.