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One program I missed when moving to Mac was Irfanview (google it). It is a quick and powerful photo viewer and basic image manipulation program with a great batch part. It worked with no problem with PlayOnMac. How do I get this added to the list of supported software?

Well, you would need to write a script for it. Here is some information regarding that. Read all of these:

Script-writers documentation for PlayOnLinux/PlayOnMac
http://www.playonmac.com/en/dev-documentation-1.html

Standards for Script Publishing
http://www.playonmac.com/en/topic-10187-Standards_for_script_publishing.html

This is where you can post your script when you are done with it:

http://www.playonmac.com/en/forum-25-Your_creations.html

After its been gone through and its syntactically, you can submit for signing and publishing.

A good Template to use to get used to how the scripts work is the League of Legends script.

If it works fine, then this should be a real easy script to write, and a good one to learn on. :)