problems with beta version 4 mac

[maya]

hi,

am on mac 10.6.3.. just downloaded version here,
http://newsgroup.xnview.com/viewtopic.php?f=60&t=19759 (http://download.xnview.com/XnViewMP-mac.tgz)

but I have two problems:

1) when remove image image does not get removed; and
2) closed preview window, now see only Properites (choices are: Properties, Histrogram, EXIF, ExifTool, and Categories.. no image preview.. how do I get image preview back..) under view > info pane, option "preview" is disabled

also there's no reload/refresh button in toolbar...

thank you..