This has been broken for ages, and I think it's been (or is going to be) fixed for the next release some time this summer. There's no easy way to do this I'm afraid (I won't say it's not possible, but probably not worth the hassle for it to be hacked into a codebase that wont be used in a few weeks).

Thanks Graham,

My site goes online in july/august I think, so I'll wait untill the next release.

If you want to see my (local) progress: http://84.107.2.50/plam/design/blogs