oh, sorry, I didn't see your thread before. Well, what is happening is that I actually erased the insert text tool from tool palette and only use (almost never) the menu Draw > Insert text...
I know it's too late, but you should save a backup of your scripts before trying something so radical

. But do not worry, there is a solution:
You must tell AS that text tool is a button, not a normal tool. Tools are divided on normal tools, like draw, select shape, translate layer, etc. and button tools, like flip layer and many buttons I don't remember right now

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To tell AS it's a button tool you must open "_tool_list.txt" file, which is on scripts/tool folder and add a line
You can put that line in any place you want, the file shows you the order of all the tools. I think that it is on Draw group as default. If you want to assign a shortcut to the button, you can replace the "..." for a "T" or any key you want (just be careful that key be not used by other tool).
If you still having problems you can make a search on forum about how to install scripts. If you still having problems you can ask here.
Sorry for the bad moment, I published my scripts thinking that anybody knows how to install them. My mistake.