Thomas - Kerry (who was in Vietnam, you know) has made statements that his military service would make him "better qualified" to be president. (I don't think even anyone on A2K who lives here in the US has disputed that claim.)
As far as the POWs, they've recently put up a website
http://www.stolenhonor.com and are releasing a documentary.
Another website you might peruse is
http://www.vnsfvetakerry.com/
put together by Vietnam special forces vets (among others), who categorically state on the site:
"If Bush had done what Kerry did, this site would be against Bush!"
I honestly don't think any of this is about Kerry's military
record, but rather, as many have said and believe, about what he did
after his four months in Vietnam.