enigma1 - 8:42 pm on Jul 20, 2010 (gmt 0)

You shouldn't be making redirects if you want to keep your old pages indexed and their rank. You accept the exact links and then you load the associated content and in the htaccess you have a rule to pass the input to a script to your new application with a lookup table or if there are just few links you could process them inside the htaccess.

You may need some code to avoid duplicates though so your seo code doesn't create new links that point to the old ones.