Ok, so I figured out something else that 'kinda' works... You put in two different filters:
1.
Text to find: ( www)
Replace with:
http://www" target="_blank" rel="nofollow">
http://www This one finds a link with a space before it (Notice the space before the www in "text to find"). Basically this looks for inline links (Links that are not on a line by themselves) and replaces the "www" with "
http://www" target="_blank" rel="nofollow">
http://www" which then in turn makes the link automatically active.
2.
Text to find: (\s+www)
Replace with:
This one finds link text that starts on a line of it's own and replaces the "www" with "
http://www" target="_blank" rel="nofollow">
http://www" and makes the link automatically active. The problem with this one is that it changes the formatting of the post because of the multiple line breaks (fyi, using a single line break also changes the formatting of the post). If you don't include the br tag's the link text will be butted right up against the the character that precedes the link no matter what line it's on so you get a run on word (i.e. jeff
http://www" target="_blank" rel="nofollow">
http://www.google.com instead of
http://www" target="_blank" rel="nofollow">
http://www.google.com being on a line of it's own)
When you first make the post, the filters above work correctly (other than the slight formatting issues with the second filter's line breaks. The problems occur once you start editing the post. What I have found is that you can edit the post no more than 3 times without it messing up the links otherwise your links become de-activated. The reason behind this is that when you go in and edit the post, for whatever reason DNN adds a space before and after each line. I haven't figured out why it does this but it doesn't actually affect the formatting of the post once click the submit button. The only problem is, the spaces stay there in the post when you re-edit so it keeps adding spaces before and after each line each time you edit the post, so after 5 edits, you get five spaces before and after each line for some weird reason. Once you remove the spaces upon an edit, your links go back to be automatically active.
I still want to find a correct and permanent fix to this problem (or see the DNN people address this so we don't have to use filters to get this to work).
Jeff