[Zope] Automatic determination of height/width properties in Images?

I just imported my existing web into Zope via the fsimport external method. Unfortunately the height/width property of the imported images was not set. Can anyone offer a way of automating the retrieval and setting of these properties? Cheers, Darran. [It's been a long day. I finally decided to install Zope at 11am this morning. 14.5 hours later, I am having to drag myself away from the monitor - what a great system.] -- Darran Edmundson dEdmundson@bigfoot.com