zblur.c did compile as a sequence plugin but it did not function.
when i rendered a scene, all i get are red screens and the error 'no zbuffer' or something like that.
i use the i386 linux version.
zblur DID work before.
the api changed from 2.23 to 2.24 and above.
you might want to look into changing the plugin's code to make it work.
Now this is a helpful answer.
I might have a look if there is a new version of zblur.
This means that most of the older plugins don't work anymore unless they're updated? Tough...
BTW: Do you have experience with NURBS UV-texture mapping. I got it working once but i forgot the settings.