WSDc Source Compare

I have a program that is to big to open in SEU (vendor program for an 
Order Entry System)  the program is 47,758 lines long, so far any attempts 
to do a comparison with the old source have failed (ie: SEU option 54, 
S-compare Harmonizer, etc). Why the vendor has such a monster I don't 
know, but mine is the task to document that they have not lost any of our 
custom changes, that they have made in the past, for good  :"Ole Sarbanes 
Oxley"

WSDc will open up the member and even do a compare, but I can't seem to 
find much else I can do with the compare, like maybe print differences, 
Since I'm not to familiar with this program, and I'm still somewhat living 
in the past, I'd be happier to have a tree or two to wade thru.  I'm 
assuming that since I can't find any mention of printing that it's not 
there, or am I missing something?

Thanks,

-- Jim Lowary