I want to start doing instances again and at level 74 with all greens except for blue necklace is really hard. I'm having a hard time trying to find groups for instances due to my gear and they never want me to dps because its so low...=( the only option I have is tanking and I've never really figured out what to do. and i'm always afraid that people will die.. Are there any tips you can give to a beginner tank?