That’s what I read – but the way my site is built it uses a lot of partially-customised plugins which all need to interact with each other in non-standard ways, so I don’t want to upgrade them without testing them all together first; I’ll stick with 1.7 for the moment. Thanks again.
Got it – doesn’t look like it’s doable in 1.7xx, as according to the codex BP can only use one template for all BP pages. When I upgrade I’ll have another look. Thanks, Hugo!