Hi, sorry to hear you lost your password, but there is no way to recover it.
Does your channel store any login or linking information? If not then there is no problem to sign an update for the channel with a new key. If you do store information in the registry like a link to your website, your users will most likely have to relink and re-login after you update using a new key, unless you can figure out a way to bridge the two - for example if you store the device unique code on your webserver along with registration information, you might be able to come up with a strategy to keep currently authorized users authorized when the channel updates. I know of at least one channel that was able to do this.
- Joel