www. Redirect URL error

[ysite]

Hey.

My URL is AP settings is set as mysite.com. I want it to be set as www.mysite.com. Unfortunately, when I set it as www.mysite.com, and someone types in mysite.com, it would come as www.mysite.com/index.php=www.redirect!. Something like that <.<. I searched SMF and someone said I have to manually change some settings through my FTP but I have no clue what to change and how to change. I really want it as www without the junk at the back and want it to redirect to www.mysite.com when someone types in mysite.com (without wwwredirect thingy).

Please help!
Thank you.

[Kindred]

change all of your URL listings in the smf admin tool, including your theme urls

[ysite]

I went to server settings, and database and paths. Only related things I got are Forum URL, SMF Directory, Sources Directory, Cache Directory. In forum URL, i have www. in front of it, but the other things are like: /home/mysite/public_html. etc.
Help?

[ysite]

i was able to change theme one from theme settings but that didn't help.

[Kindred]

are you using a server side redirect or an htaccess file?

[ysite]

I have no clue what they are lol. I use SMF on the site and I use filezilla to edit files, so im guessing htaccess. Please let me know what to do with it, and which htaccess files, cuz there are quite a few in different folders.

[Kindred]

   you should probably only have .htacces in your forum root...

read this for instructions on using the htaccess
http://www.herseo.com/blog/2009/05/30/how-important-is-it-to-htaccess-redirect-to-www/

[Illori]

sounds a bit like

is http://www.simplemachines.org/community/index.php?topic=386816 any help?