[Scribus] page number alignment

[Noel Castro]

when adding 3 digit place numbers, on the left page everything is 
aligned correctly, but the right page has blank spaces, two for single 
digit pages, and one for two digit pages.
for example, I have the page numbers left aligned on the left page, and 
right aligned on the right page. the right page will have one or two 
spaces between the page number and the page margin.
I'd like to know how to align the page numbers on the right page so that 
the number will always be flush with the right margin.