Installing Multisites

Trying to set up a multi-site installation.

Fresh install . . .

Added the code to wp-config and web.config and got the following errors and intructions to paste here . . .

wp_1_posts: Table ‘wordpresssites.wp_1_posts’ doesn’t exist
wp_1_comments: Table ‘wordpresssites.wp_1_comments’ doesn’t exist
wp_1_links: Table ‘wordpresssites.wp_1_links’ doesn’t exist
wp_1_options: Table ‘wordpresssites.wp_1_options’ doesn’t exist
wp_1_postmeta: Table ‘wordpresssites.wp_1_postmeta’ doesn’t exist
wp_1_terms: Table ‘wordpresssites.wp_1_terms’ doesn’t exist
wp_1_term_taxonomy: Table ‘wordpresssites.wp_1_term_taxonomy’ doesn’t exist
wp_1_term_relationships: Table ‘wordpresssites.wp_1_term_relationships’ doesn’t exist
wp_1_commentmeta: Table ‘wordpresssites.wp_1_commentmeta’ doesn’t exist

My first attempt at multisites . . .

Thanks.