Ah, I see. Sometimes certain characters in the manga title can trip up the publisher.
Also, make sure you have a language selected.
In regards to pages and numbering; make sure that the publisher's numbering doesn't have two of any number (i.e. 003, 001, 002, 003) or a 000 file.
If those tips don't help, maybe post what your trying to save (title, info, sample pages) and I'll try to help the best I can.
