Definitive Guide to Drupal 7

Searched for "ampersand breaks imagecache" and ultimately found this module. An & (and probably other special characters) makes a perfectly valid uploaded file but does not show up in that file's imagecache manipulations.

Provides a central transliteration service to other Drupal modules, and sanitizes file names while uploading.

Noggin module allows you to upload a custom header image on the Theme Settings page, just as you can logos and favorite icons. With Bartik and other core Drupal themes, the header image will appear automatically. For themes that use slightly different markup, you can enter in a custom CSS selector for the header region.

This is an excellent module to use as an example for Drupal's core extendability (a module modifying a theme! --even if simply by adding CSS.)

It seems that some theme stuff (like the favicon and the logo and probably unaggregated CSS/JS) is passed as Drupal paths into file_create_url while aggregated CSS and JS is served from public://. So we need to implement file_url_alter and override the getExternalUrl of the DrupalPublicWrapper class

The culmination of this effort is that now we have a mostly functional development release for Drupal 7.x port of Userpoints.

This all happened spontaneously. People self organized and lend in a hand, and in the end Userpoints, Drupal the project, and Drupal the community wins ...

Though I know I'm not using it to its fullest on my simple site, I have peace of mind knowing that I've invested time in a system that can grow with a client's needs. I can say with impunity: "Yeah, Drupal can do that."