Redirect the Root URL to WP Subdirectory using Cpanel

I have been converting a website I have had for years from another website building tool to Word Press.

By error of being a newbie to wp and Cpanel installs, I installed and built my wp site in a sub-directory…a long story for why I haven’t noticed this till now when 163 pages are built.

The process of using the ‘Redirect the Root URL to WP Sub-directory using Cpanel’, seems simple and effective in allowing my new wp site to answer to it’s root directory URL http://www.domainname.com, rather than http://www.domainname.com/wp …This is very important to me.

I have found some info on the success of doing this but absolutely nothing on the effect this has on Search Engine Placement, which is very important to me.
Does anyone have any experience with this?

I’ve also read that there is a way of uninstalling and re-installing my wp site into the right directory and that would solve the URL problem but I do not feel proficient enough to do that with a 163 page site in play here…as well as I wonder if that would not cause another problem with all the site images and sound files that I’ve uploaded on the Cincopa plugin server…they are linked to the sub-directory and would be lost??

I would really appreciate the input of anyone that is using ‘redirect’ and it’s effect on SEO, Thanks in advance, Claire