[Scribus] Transferring Scribus files to another machine

[ols6000 at sbcglobal.net]

On a Windows XP machine, I have a Scribus file MyDoc.sla. This 
document has many pictures, which are in two separate folders, 
MyPict1 and MyPict2.

I have made a copy of MyDoc.sla on a Linux (FC6) machine. When I open 
it with Scribus 1.3.3.9cvs, the pictures are all red X's, since I 
haven't moved copies of all the photos.

1) From within Scribus, there doesn't seem to be any way to find out 
the name or path of the missing photos. Right-clicking on the picture 
frame and selecting Info just gives "no image loaded". Is there any 
way to get the path using Scribus?

2) I have examined MyDoc.sla with a text editor, and I see lines such 
as PFILE="../../D/S/M/P/G/MyPicture.JPG". This is the correct 
relative Windows path from MyDoc.sla in its Windows directory to 
MyPicture.JPG in its Windows directory. It is not appropriate to 
recreate the Windows directory structure on Linux. Assuming I move 
all the images to (new) Linux directories MyPict1Linux and 
MyPict2Linux, how can I tell Scribus that is where to look for the images?

3) Is there any easier way to move a complex document from one 
machine to another?