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Make sure you stick to one ROS version during your installation and use. You mention you try to get it working on ROS electric, but also say you installed some Fuerte packages. They can happily live side by side, but your environment setup should only use one version:

http://www.ros.org/wiki/ROS/Tutorials/InstallingandConfiguringROSEnvironment

As for the missing packages, it looks like you didn't search that well ;):

• http://www.ros.org/wiki/planning_environment_msgs
• http://www.ros.org/wiki/move_arm_msgs
• http://www.ros.org/wiki/mapping_msgs
• http://ros.org/wiki/octomap
• http://www.ros.org/wiki/collision_environment_msgs

where the octomap_msgs is the only one not having a dedicated page - but I suspect the package to be available in the octomap_mapping stack.

In case you are new to ROS, you might want to try some tutorials to familiarize yourself:

http://ros.org/wiki/ROS/Tutorials