Help redirecting old pages to new under same domain in oscommece website

Hello. I have just launched my oscommerce website. Before that I had a custom php site. I need the old urls directed to the new within the same domain. eg. /[login to view URL] redirect to /[login to view URL] i have about 80 or so to do. I will provide the list to the winner I have tried adding it to my htaccess but couldnt get it. this is what i used: Redirect 301 /old-page-name http://www..[login to view URL] I think it will be more tricky than just adding a redirect somewhere. my htaccess is filled with rewrites etc. its all too confusing for me. someone who has had experience with 301 redirects before would be ideal. thanks need this done asap, preferably now.