Update as of 14 Aug 2010
Please note: this module is outdated. DIBS has release their own module: http://tech.dibs.dk/toolbox/e-shopsystemer0/ (It is highly recommend to use this module instead). Thanks to Daskog for pointing this out to me.
*** Full instructions on installing this payment module can be found in the download zip file (ie, readme_eng.txt or Reademe.1st file)