Windows older clients (with server v2.5.32)

Hi, need to backup Windows XP / server 2008 R2 and Windows 7, which client will work with the current server? v2.5.32

Trying to load this on Windows Server 2008 R2, we found client v2.5.19 installs, however cant open the GUI, says “there was an error nothing can be backed up”, how do we add the internet client details to connect it to the server?

Got the client installed, v2.4.11 seems to last version that works with Windows 7 generation… trying to connect to the server now