Please add an editing feature, and search feature, too

Would it be possible to modify the community forums so we can go back and edit our posts? I frequently don't notice little things, such as spelling or grammatical errors until I've already posted. It bugs me to see the errors and not be able to correct them. Or, if I want to add something that I forgot to write, or remove something I shouldn't have said, it would be nice to be able to do so after posting.

Also, and I think this has been brought up before, it would be nice to be able to search for specific threads that we've either contributed to or started. It's hard to find the posts even a day after reading and contributing to them. Thanks!