Hi Paul,
The columns on the week and month view are repeating fields, so deleting the last two repetitions will delete your weekends and then you can make the remaining repetitions a little wider.
The layout has a lot of stacked fields on it though, so you'll want to practice on a copy of the file until you get the hang of adjusting these objects and changing their width. The following article will help:
Working with the calendar's tabs:
http://www.seedcode.com/pmwiki/pmwiki.p ... lendarTabsBest,
John