I have tried All In One Seo plugin but its not working in my theme so i tried wordpress codex and kept those codes i Seach and 404 files but those codes too not working does anyone have that code, if so where i have to place in the index or that related file? or can you suggest me a good plugin?
i think theres something on webmaster tools that gives you extra control over 404 - might be worth a try if the other options dont work