If I've got your question right -
It seems as though you are interpreting geographical restrictions to mean where your advertisements are created. I've never seen such a restriction.
Example: I own the rights to a specific, let's say picture, for simplicity, and I give you the right to reproduce this picture on a poster.
Geographical restrictions would normally apply to where these posters could could be placed (as reflected in ALawyer's reply above), not where the posters are designed and/or printed.
The only case that I think of where site specific use of a copyrighted work during design and/or manufacture would make sense would be perhaps where the copyright holder would be interested in the quality control of the design/manufacturing process and a certain site has certain equipment or facilities which would preserve the integrity of the copyrighted work in the end product.
However this condition would seem more appropriate to a manufacturing process i.e: I give you the right to manufacture my widget on the condition that it is manufactured in this particular factory, because I have inspected the particular factory and feel that it is equipped in such a manner as to reproduce my widget at the level of quality required.
It also seems that your question may have dealt with the in-house distribution of the image libraries (network access, physical distribution of the cds, etc.) - if so, you'd need a WAY different answer, I guess you'll let us know if we have to take another swing at this.
Hope something in here helps,
Good luck
wtd