How do you delete Google talk?

You cannot "Delete" Google. Unless you are planning to nuke the Warehouse in which they store the Website.

You should be able to email them no problem or use the help menu on one of their products.

Download it from: http://www.google.com/talk

Google Talk is Google Messenger that we people use to communicate online.

You can download GTalk from here: http:/dl.google.com/googletalk/googletalk-setup.exe