oclHashcat-plus not working in backtrack r2

[dodg3r]

It's strange. You're using Backtrack 5 R2, right? So do i and in my system it came preinstalled. You should look for it in /pentest/passwords/oclhashcat+ folder.

You should also consider doing the following:
sudo apt-get update
sudo apt-get install
responding Yes to questions.

Let me know if it worked for you.