1.3.5 database products to 2.0.9 database

when I run the upgrade to 2.0.8, I get the following error:

Database error: Table ‘stevesca_cscart.cscart_stat_search_robots’ doesn’t exist (1146)

Invalid query: ALTER TABLE cscart_stat_search_robots CONVERT TO CHARACTER SET utf8;

I just deleted the update string and it upgraded.

But now the site does not run. I get the following:

Database error: Unknown column ‘user_type’ in ‘where clause’ (1054)

Invalid query: DELETE FROM cscart_user_session_products WHERE user_type = ‘U’ AND timestamp < 1255737967

any ideas?