for now I have found a cool way to guess the latest install name, you request this link http://www.acunetix.com/wvsupdate/v65/updateinfo.xml

latest install for now is: 2010_02_03_01_webvulnscan65.exe

You can also dl patch that way

http://www.acunetix.com/wvsupdate/v65/patch_1-2.cab

Unfortunely the exe does not belong to that folder hehehe

Trying to hack the ERP for weak passwords Im sure there is :x