CMS Made Simple Forums

I know this is a complicated subject, but I need some help with Mod rewrite...

I have read up on the subject here:
http://www.webmasterworld.com/forum92/82.htm - its the clearest explanation I've ever been able to find... But I am still struggling.

I want to redirect:
http://www.shareworld.co.uk/index.ph...ic/7/55/1/190/
to
http://www.shareworld.co.uk/index.ph...ic/1/55/1/190/

And there are loads of pages I need to do this for, always changing the 7 to a 1, and the next two digit number will always be unique.

I have tried this:

RewriteRule \/topic\/7\/[0-9][0-9]\/1\/190\/$ \/topic/1/[0-9][0-9]/1/190/ [R=301,L]

but it does not work.

Just wondering if someone could either tell me how to do it, or perhaps give me some pointers.

Thanks

Dave

Don't worry sorted it

care to document how??????????????

RewriteRule  [/]*([^/]*/[^/]*/[^/]*/[^/]*)/7/(.*)$    /$1/1/$2 [R=301,L]

that's how I done it. To be honest got the answer from experts exchange! Did do some research though and think I understand how it works now.