Your an all in one guy, Database programming and a dentist, I bet you can do both at the same time
But in all seriousness
Could you be more specific and clear about what functions aren't working for you?
I have been following this thread daily and was aware of your mailing problem but it was nothing that I can fix personally(Didn't personally think I was required to butt-in really?)
My software relies on PHP mailing functions which is usually supported on more then 90% out of the box VPS hosting and it is more of a PHP issue then a software it sounds like anyways.(May be config issue)
Anyways I remember about a month ago I had mailing issues with PHP and I never did find a solution except that I reloaded the operating system which is less then ideal for recommending someone for a solution.
I actually did some testing yesterday and posted a bunch of fixes like I announced I would about a week ago.
and in all actuality it took me relativity 4-6 weeks to create this software from scratch, So i think your estimate for how long you've been chipping away is probably a little off.
P.S. Before the update that i mentioned above I have deleted poolstats.php unless github didn't commit it to the request in which this case I would ask your workers/users to ignore the broken link. Thanks mate!