You know, I have been thinking of doing something like this - you have just inspired me! In picasa you can tag pictures and I have tagged all my flowers that I have collected this year. One day I will group and collage like you have. It really is spectacular!
Bruni, re copying/pasting.... are you on a PC or a MAC computer?
The command for copying on a PC is "Control key + letter C" and for pasting "Control V." (Or you can do each of these tasks by clicking on the EDIT menu in tool bar at top of the page.)
If on a MAC, copy is "Command key + letter C" and "Command key (aka Apple key) + letter V" to paste...and again you could also do these things by clicking on the EDIT menu.
Let me know if that works for you...of course always be sure you have clicked in the box and see your cursor before attempting to paste.
The command for copying on a PC is "Control key + letter C" and for pasting "Control V." (Or you can do each of these tasks by clicking on the EDIT menu in tool bar at top of the page.)
If on a MAC, copy is "Command key + letter C" and "Command key (aka Apple key) + letter V" to paste...and again you could also do these things by clicking on the EDIT menu.
Let me know if that works for you...of course always be sure you have clicked in the box and see your cursor before attempting to paste.