It's actually very simple.
Open notepad. Save it as ".htaccess" file. Nothing else should be added to it's name.
In the file, type in pages you want to redirect.
Example:
redirect 301 /page001.html
http://www.mysite.com/page002.html
Keep spaces as in example. First URL is your current URL. Second URL is where you want to get redirected.
Do the same for all webpages you are redirecting. Place all codes to .htaccess file and upload it to the root directory.
That's basically it
