Re installing Koha 3.0.0. beta version on a Windows platfrom
 
Have downloaded the three modules - Apache, Active Perl and MySQL but the download of Koha-3.00.00-beta2 won't install.  As far as I can see, the set-up executive is not there.  the file is in a tar.tar form, but even when extracted I cannot find the set-up executive.   Can someone please help?
Carmel.
Am using this version because read somewhere that the  Z39.50 function doesn't work on koha 2.2.9 on a Windows platform?  Or has this ben fixed?