I've deleted every instance I could find ad will try again.
I installed with the Sketchucation plugin store; searched the plugin store within Sketchup, click autoinstall,

well, I was doing it as I was typing a blow-by-blow and lo and behold it worked. Don't know what I did differently this time. I've tried at least a dozen times to install it both manually and thru the plugin store. Hmm, dunno. At least its working now.
thanks for your help!
Stan

Thanks Dave R,
just tried that. deleted all instances of Flattery and auto-installed from inside Sketchup. The toolbar still does not appear. Window>Preferances>Extensions shows it in the active list. but no joy. The Plugins Manager shows it as loaded, however the Extensions Manager show it as Disabled.

I need some help;I've tried installing this plugin and cant seem to get it to work. (Sketchup (Make) 2014, Win8). following the procedure: Window>Preferences>Extensions. click on Install Extension, navigate to where you put the file, select it and choose Open. the toolbar doesn't show up and upon closing/reopening Sketchup I get the error dialog:
Error Loading File C:/Program Files (x86)/SketchUp/SketchUp 2014/Tools/RubyStdLib/flattery/toolbar.rb
Error: #<SyntaxError: C:/Program Files (x86)/SketchUp/SketchUp 2014/Tools/RubyStdLib/flattery/tabtool.rb:238: syntax error, unexpected ':', expecting keyword_then or ';' or '\n'
C:/Program Files (x86)/SketchUp/SketchUp 2014/Tools/RubyStdLib/flattery/tabtool.rb:276: syntax error, unexpected ':', expecting keyword_then or ';' or '\n'
C:/Program Files (x86)/SketchUp/SketchUp 2014/Tools/RubyStdLib/flattery/tabtool.rb:287: syntax error, unexpected ':', expecting keyword_then or ';' or '\n'
C:/Program Files (x86)/SketchUp/SketchUp 2014/Tools/RubyStdLib/flattery/tabtool.rb:291: syntax error, unexpected keyword_end, expecting end-of-input>
C:/Program Files (x86)/SketchUp/SketchUp 2014/Tools/RubyStdLib/rubygems/core_ext/kernel_require.rb:45:in require' C:/Program Files (x86)/SketchUp/SketchUp 2014/Tools/RubyStdLib/rubygems/core_ext/kernel_require.rb:45:in require'
C:/Program Files (x86)/SketchUp/SketchUp 2014/Tools/RubyStdLib/flattery/toolbar.rb:24:in <top (required)>' C:/Program Files (x86)/SketchUp/SketchUp 2014/Tools/extensions.rb:197:in require'
C:/Program Files (x86)/SketchUp/SketchUp 2014/Tools/extensions.rb:197:in load' C:/Program Files (x86)/SketchUp/SketchUp 2014/Tools/RubyStdLib/flattery.rb:28:in register_extension'
C:/Program Files (x86)/SketchUp/SketchUp 2014/Tools/RubyStdLib/flattery.rb:28:in `<top (required)>'