Dennis,
Sorry about the late response. For some reason I missed this posting.
You can change CSS stylesheet by specifying the location of a new stylesheet from the dotfolio package's parameters. Having said that, I don't think that the CSS I've created would be compatible with theme selva. You'll need to copy the dotfolio-grey.css file, and modify it to use selva properties. Rename the file to dotfolio-selva.css, and specify its location from the OpenACS Parameters page in acs-admin.
dotfolio has remained stagnant on version 0.3, as I've been preoccupied with Curriculum Central. This project should be completed in within the next two weeks. After which I'll be focusing on integrating dotfolio with curriculum central, so that the dotfolio owner will be able to track the courses that they have completed for their degree or certificate.
I know Solution Grove have been working on additional features for dotfolio, but I don't think that they have been working them into the openacs repository, as the features seem to be client specific.
Cheers,
Nick.