Traveler client installation fails

After downloading the CAB file from the Traveler server to the mobile device, the installation phase ends with an error, telling me that the application is incorrect for the system I’m using…My test devices are a QTEK 9000 (Win Mobile 5.0) and an HTC TYTN (Win Mobile 6.0 Pro), and I have tried to use all the different packages available (Win Mobile 5 and 6, with and without the Smartphone option).

The error message apperas to be fake, but no further documentation is available, if anyone could help I would greatly appreciate…