[sclitheroe]

Good grief...rather than advocate piracy, why not download a completely legal and assuredly virus free 30 day trial of Office 2010 from office.microsoft.com, which includes Publisher, and do it up in that?

On the Mac side, there is a 30 day trial version of iWork 09 available that is G5 compatible, and Pages is quite capable at doing Publisher-style layout too.

Of the two, Pages would probably be easiest for the simple layout work you are envisioning.

Edit: for that matter, you can download a trial version of Adobe Creative Suite too if you really want to go overkill. I see no benefit to using InDesign for something as simple as a newspaper ad however.

Edit: Finally, if this is a true, registered not-for-profit, you should get them to sign up with Tech Soup Canada - then you’re talking about fully licensed copies of Office for like $30 a head, Creative Suite for about 1/5 what it costs retail, etc.