Scott, I'm not sure how you got the error in your previous message (since the error actually referenced the individual .sql files..., unless you copy/pasted in the lines sql/xcseo.sql into the actual SQL box...)
If you're just upgrading, then as the upgrading instructions showed, you can just paste the specified SQL text. If you're installing from scratch, you can paste the sql from each .sql file (or do the Browse option to upload each SQL file).
It would be best for you to start over on the SQL part, execute the sql/xcseo_remove.sql file (or copy it's contents into a SQL text box and execute), then install the xcseo.sql and xcseo_lng_US.sql files
For a quick reference, here is the SQL to uninstall XC SEO:
Code:
DELETE FROM xcart_modules WHERE module_name='XC_SEO';
DELETE FROM xcart_config WHERE category='XC_SEO';
DELETE FROM xcart_languages WHERE name='module_descr_XC_SEO';
DELETE FROM xcart_languages WHERE name='module_name_XC_SEO';
# Added in v1.1.5
DELETE FROM xcart_languages WHERE name='option_title_XC_SEO';
DELETE FROM xcart_languages WHERE name='opt_xcseo_keyword_injection';
DELETE FROM xcart_languages WHERE name='opt_xcseo_category_rewrite';
DELETE FROM xcart_languages WHERE name='opt_xcseo_manufacturer_rewrite';
DELETE FROM xcart_languages WHERE name='opt_xcseo_product_rewrite';
DELETE FROM xcart_languages WHERE name='opt_xcseo_staticpage_rewrite';
DELETE FROM xcart_languages WHERE name='opt_xcseo_simplesearch_rewrite';
DELETE FROM xcart_languages WHERE name='opt_xcseo_redirect_robots';