Discussion Forums
If you want to talk about SweeperBot, the recommended place is the discussion forums on Google Groups.
Bugs?
The preferred place to report bugs and view existing bugs is rt.cpan.org.
Source code
SweeperBot is free and open source software. If you've already got the SweeperBot executable then you have the source code too! Just use your favourite unzip tool to unpack the files inside.
The unpacked source code isn't ideal if you wish to make modifications. If you want a stable release, you can grab the source code from CPAN.
If you're interested in doing some heavy duty development, or contributing back to the project, you can fork or track the source-code from github.