northgate wrote
a) Where is the DesktopModules\Event directory? Is this on the DotNetNuke site or part of my own hosted DNN set-up?
in the dnn installation, you can't acces it through the filemanagers.
northgate wrote
b) Once I have customized the module look and feel do I need to reload the entire module to my DNN site?
You don't need to copy only override the styles the module uses. You can place these classes in you skin .css file so just upload the adapted skinfile
northgate wrote c) What is the recommended CSS editor?
Anyone will do, I use VS2005
northgate wrote d) Big picture question about the process involved i then .css modifications. Can this be done on files and modules already uploaded into the site or does this have to be done as a separate step on my local machine and only uploaded when complete as a completely new module?
Each module should have a module.css in which module-specific styling is placed. These styles can be changed in this file, but you could also change them in the .css file that is part of your skin. You cannot upload the module.css by means of the host/admin filemanager, you need to use the module installer or any other means to access your file system on your webserver. Usually, when you develop a module, you will at some point take care of the styling.
northgate wrote e) Can you upload a .css file for a specific module on its own or does one have to upload the entire module .zip?
See above.