Problem importing .obj into Vivaty Studio Beta

When importing a .obj file as described in "http://developer.vivaty.com/convert3d.php" I receive the error:

Error reading c:\Users\...\AppData\Local\Untitled_import.wrl
Unknown Field: NULL: textureTransform
Line Numer 52

I used the Vivaty Studio Beta 1.0 from 2009 09 14.
I am not too sure about which file format to choose in step:
"In the pop up dialog, select the type of file you wish to import from the list."
I tried different types with the same result.

The first import step seems to work, it takes some time, I can see the model and rotate it to different angles.
But when I press "Import into Flux Studio" after a few seconds the error mentioned above occures.

By the way:
Once I have imported it, how do I combine it with a texture (jpg) ?

Thanks very much in advance.