Creating Panoramas

I have trial versions of Panavue and Panorama Factory. Both appear to work well, but when trying to print, I just can't figure it out.
1. I get only small prints--with Panorama Factory, I set it for 4 x 6 and I get a 6" wide print but only 1" high. Is that because it is the trial version or where am I messing this up?
2. If not, how do I get it to print to a specific size?
3. I am really intrigued by the panorama effect and have all sorts of ideas for work, but how does one go about sizing the picture and uploading to one of the companies for say a 20 x 30 print?
I am sure the questions are minor to some, but I certainly would appreciate some help.

Thanks...

If your panorama size is 100 px high by 600 px wide or some multiple of that 1:6 aspect ratio, then the thing is printing out fine. Or is some of your pic missing on the print? In other words, what are the dimensions of the panorama?

NickC,

All the image prints on my letter size paper, but on the panavue preview run, it lists the width of the picture to print at 1724 pixels by 446. What is my problem or what do I need to do?

Thanks