you can download the latest SAP Connector from here:
That is Qlik.com -> Services -> Customer Download -> Select Connector Tab and select
Qlik Connector for use with SAP NetWeaver
Actual Vesion should be 6.1.2.
I wouldn't expect any problems installing this connector and using your Desktop Version.
Just consider installing the transports to your source SAP System, too.
That's well described in online help