I wouldn't really call the first one you mentioned a bug, but I changed the code to use some padding instead to add some spacing.
Added the start parameter as you suggested.
Thanks for your feedback, I really appreciate it :)
New version is now available for download.
Ps. not quite sure what you meant with cleanup.. but I think It's fine for the time being.
I got the impression that the Phorum team was adding functionality similar to this module, so I'm not gonna spend too much time making the code look pretty.