Thank you very much! You are doing an excellent job!
and a special thank you for your patience and quick responses! I will try next time do not be silly!

@unknownuser said:

but after that I lost the button Plugins from the control panel

i can see all my pligins.

sorry for my bad english
my problem is that - after the installation tt_library at startup i see a screen with an error(print screen in the attached files). an installed other plugins just not displayed. problem can be solved only after a complete reinstall the program.

Yes, I TT_Lib libraries properly installed, but after that I lost the button Plugins from the control panel(including V-ray). After that, I have properly installed other plugins for sketch up, they have successfully copied to the Plugins folder, but when I run the program do not appear (and yes, I restarted the program)))))

http://www.imagebar.net/out.php/t105394_1.jpg
EDITED: link TIG... still unreadable !

I'm new here, please: help. I copy the downloaded file (tt_cleanup.rb) to plugin. When i get inti Scetch up (8 pro) a window pops up ERROR LOADING.