I have just started using blender tool to make amzing real images and I am really enjoying it. I am no blender developer. I hardly have ideas about programs in blender.
I want to use it for making real pictures of atomic bonding of molecules. I saw few videos in youtube where I found that blender can be used with VSEPR tool to make atomic bondings.
Could anyone please suggest me what to install for having this. I have blender version 2.64 as well as 2.68a(new). I use mainly linux but also windows 7.
Please tell me what I should do.
Thanks in advance.

sbaidya_phycsics