There are two ways to install Seaside, whether 3.0 or 2.8.3: MetacelloRepository or "by hand" using Monticello. I have been a big proponent of Metacello because it saves me work. One step; you're done. Now I have reason to feel that it's not perfect.
If I install Seaside 3.0 using MetacelloRepository on Squeak Source, all is well.
If I try the same thing using ConfiguationOfSeaside28-DaleHenrichs.18.mcz from MonticelloRepository. Didn't work. There is no CSS. This is not good. Suspecting a change, I tried ConfiguationOfSeaside28-DaleHenrichs.10.mcz. Same result. No CSS.
Here's were it gets weird. If anybody is not a convert to Metacello, here's something to note.
If I install the old fashioned way of loading 2.8.3, then there is no problem installing in trunk image 4.1-9745-alpha.
That requires doing it with Monticello "by hand". Go to KomHttpServer. Intall DynamicBindings, KomServices, and KomHttpServer. Then go to Seaside, access the 2.8a1, and download the latest version. Start in a Workspace with WAKom startOn: 8080, and it works.
This is actually pretty shocking to me, as I'd begun to regard on Metacello as the non plus ultra.
Chris