Issues..help

Im having a problem. The last post url's are not being rewritten on the index page of my forum..They show up without the www so it's just http://t-simoniz-liquid-diamond-4187-new.html/

Also, I used deanc's mod before. All of my indexed pages are with deanc's mod... I need them 301'd to the new ones. How can I do this?

Here is deanc's old htacces... How can I redirect the old deanC urls to these so that I don't get hit for dupe content...
RewriteRule ^f([0-9]+)-([A-Za-z0-9\-]+)\.html$ forumdisplay.php?f=$1 [L]
RewriteRule ^t([0-9]+)(((-p)([0-9]+))?)([A-Za-z0-9\-]+)\.html$ showthread.php?t=$1&page=$5&pp=10 [L]

the url to the forum is http://www.exotixboard.com

can anyone help?