Use custom Fluid Templates

After these steps solrfluid is usable and using the default Templates, Layouts and Partials. If you want to overwrite them, you can change the TypoScript configuration:

plugin.tx_solr {
    view {
        layoutRootPaths.10 = EXT:yourpath/Layouts/
        partialRootPaths.10 = EXT:yourpath/Partials/
        templateRootPaths.10 = EXT:yourpath/Templates/

Now you can copy the default partials from the extension to you project path and adapt them to your needs.