helpmeplease - 12:34 am on Feb 25, 2012 (gmt 0)

Hi Everyone,
New to the forums.I have a wordpress site now at www.mysite.com and want to add an e-commerce plugin. My hosting provider recommended that I do a second install of wordpress at www.mysite.com/shop subdirectory, They said that some of the shopping plugins do not play well with some of the other plugins and that this would help. Also how would this affect the SEO. Any input would be greatly appreciated.
Thanks