Q: How can I get help?
A: Use the mailing lists to get support.
Q: I did make install but can't find the application
A: Where did you install peekabot? The default location (prefix, if you will) is /usr/local. Many distributions don't include /usr/local/bin and friends in the search paths, which is probably why the peekabot application nor the client API library cannot be found.
The easiest way to remedy this is to reconfigure with --prefix=/usr and run make install again.