Can I upload Flash (swf) to drupal 7? http://drupal.org/project/flashnode
The module that I found only works for drupal 6.
Is there a module for drupal 7?

Also, there seems to be no tag label called Flash... Maybe an advance user would want to add that?
A Google search for add flash to drupal 7 gives the SWF Embed module as the first result.

You could also look at the Media suite of modules, which can give you a much more user friendly interface at the expense of some additional time invested in figuring out which of the modules you need.