Friendly URLs duplicated

Hi,
i notice that using the web wiz forums url rewrite mod google warning me about duplicate urls in urls like these.

http://forums.webwiz.net/web-wiz-forums-version-9x-support_forum24.html
and
http://forums.webwiz.net/forum24.html

or
http://forums.webwiz.net/update-problem-please-help_topic28561.html
and
http://forums.webwiz.net/topic28561&OB=DESC.html

or
http://forums.webwiz.net/update-problem-please-help_topic28561_page1.html
and
http://forums.webwiz.net/update-problem-please-help_topic28561.html

this is an important bug becasuse google and other search engines penalize me for duplicate content

is there any solution for this?

WebWiz-Bruce wrote: Ones like your second example show the same content but in reverse order, so the content is different. Removing this type of thing would remove functionally of the forum.

There are allot more import issues to SEO than duplicate content which hardly makes any affect. You would be best concentrating your SEO on other areas.

For example a search for ASP.NET 4 Hosting a couple of days ago bought webwiz.net up twice on the first page on Google both pointing to the same article in different locations.

Dynamic pages that point to the same content are very common place so search engines don't worry to much about it. More important is your content and getting back links to your web pages.

Write good content and the rest will follow, hence why our homepage has a PR rating of 8/10 which is extremely rare.