Yes, I have checked.
Here's the file index.
http://web.archive.org/web/20080106023835/mac.the-underdogs.info/index.php?show=all
And here's a game download page, for Oregon Trail.
http://web.archive.org/web/20061125095903/mac.the-underdogs.info/download.php?id=101
Each "mirror" is really linked through the-underdogs.info, which obviously is down. Neither of them work. The links themselves use a script, so I'm not even sure what domains they actually link to.
?id=101&loc=0 theunderdogs.org
?id=101&loc=1 Mirror 1 (Europe)
