Thanks for the detailed info. I'm not too sure how practice thats gonna be for the site (they are quite old, and pretty large). Maybe I'll have to get a dev install configured, and then play around with whats needed to change the module folders names around... i.e we have GT , Links and Plugin... so I could just rename them to GT2, Links2, Plugins2 - and update anywhere that calls them. Hardly ideal, but it would hopefully work.
Someone also said this to me:
You can't run multiple domains in the same mod_perl instance, major
security risk. You need a separate physical apache process per domain.
How would one go about setting separate Apache processes up? Sorry for my ignorance... I've been hosted on managed hosting for most of my time, so this is all quite new to me =)
TIA