how do I replace a folder that i accidentally deteted and is now in my trash

Try this: highlight it, rightclic, and select the 'move to' option

i did but it kept saying it can't because it already existed in my in box. i did figure it out though. i renamed it, then added it. thanks, mike

You're welcome. Some people think I'm being offensive when I say thunderbird is stupid, but that is a real quality that lets us get away with such as this. :) Thunderbird is programmed to not attempt to enforce anything, but to comply when possible. :)