Dr. Brain –
http://sierrahelp.com/Games/DrBrain/DrBrainSeriesHelp.html
And if you need to, post here about the issues you’re having (trust me, you will get more game support there, then you will here)…
http://sierrahelp.com/forums/viewforum.php?f=11
And if Collector doesn’t have a Dr. Brain installer (which he doesn’t seem to), if you post, he may make one.