My problem:
Whenever i launch KSP with the mod installed NOTHING happens its all just the same...You know....Me...Menu....Jebidiah....The Mun
I tried the client,Dev build,Auto installed
None work
My friends problem:
Whenever he launches KSP it says its not installed correctly
He tried it manually and auto...But still the same
So i tried to find a solution on youtube and this site and some others
None wer helpful
Please help?

Where did you install DMP? Can you show us a screenie of Windows Explorer in the folder where you placed DMP?

Closing, not enough info, and any incorrect installs show up as http://godarklight.info.tm/data/kmp/darkmultiplayer/darkmultiplayer26-installed-wrong.png