So it is possible? Hard to believe that a system this powerful would lack the ability to move a survey, with responses, from one system to another, but I've tried a few forms of export / import, and nothing works.
I didn't try it myself, but wouldn't an easy sql dump doesn't make the job here? Dump your database and "import" it into the database of the new system. Then you should have the survey and the responses.
That will only work if you're importing everything. But you can't just move one survey.
The 'hack' way I've come up with:
Export the Survey as an lss file
Import it to the New System
Export the VV file from the old system
Export the (empty) VV file from the new system
Open both VV files in an editor
Turn off the "Tabs->Spaces" setting
Append the data from from the old vv file to the new vv file
Import.
This messy process exists because of the tight dependencies on SGQA, instead of using unique question_codes + answer_codes to define the database fields. Maybe 2.0 will use a different approach.
I heared that there is a new approach in LimeSurvey 2.0 which should make it possible to export the complete survey and not the survey logic + results in two seperate files. Though I don't know the current status of this feature.