Terry, I added the codes you mentioned (K2 > generic > item.php and then K2 > css > k2.css) and it didn't change anything except add the | line in between the bullet points and the tag. See here: www.papublicmedia.org/cancer-and-treatments/test-story-5-31611

Any idea?

I agree with the Gantry templates, they also load an insane amount of css files (I saw a site that had a page calling over 450 css files that was Gantry-based!).

You're almost there.  The code changes are working fine.  Just change the | symbol to a comma if that's what you want.  I looked at the page and the css changes aren't being applied.  All I see in your K2.css is the following, which does not appear to be being applied, plus you need to address both the li and the ul.

div.itemTagsBlock ul.itemTags li {display:inline;list-style:none;padding:0 4px 0 0;margin:0;text-align:center;}
Enter the line exactly as I gave you in the thirdparty.css and see if that works. Again I hate gantry.

thirdparty.css was the charm! www.papublicmedia.org/cancer-and-treatments/test-story-5-31611

I actually like the | tags, think I'll keep 'em. Thank you so, so much Terry.

No problem.  Nice looking site, by the way.