I am wondering if I can change my permalinks even though I have about 60 pages on my WP site? They are currently set to the ID number, but I would like them to be set for %postname% for SEO purposed. I tried and then none of the pages except for the index page could be found.
If I can change the permalinks, will this ruin what back linking I have done through article directories, forum posts, and blog comments?
Thank you for any help you can offer me.