Gallery 2 Tagging Module

You MUST have experience customizing and coding for Gallery 2 ([login to view URL]) or similar products. I need the Gallery 2 Tags module to allow me to decide who can add tags. Right now, the module doesn't have find controls - everything is for admins only. I also need tags "block" defined. This block will allow members to enter tags. I need the block so that I have freedom as to where I put it in my template. I've attached a sample screenshot to show you what I'm looking for.