thnx finch: added new function to retrieve terms associated to the  user of a given vocabulary and corrected the duplicate tag display problem.

corrected errors with multiple freetagging and overwriting of $edit value in the freetag loop which causes normal tags (drop down box etc) not to  be saved since $edit is overwritten.

solved the error that was causing username to be set to the first new term when using freetag vocabulary. this was caused by the use of &$user in hook_user...when in actual fact i should have been using &$account.

term_user table has a row called vid for storage of vocab id.
inputted values are displayed back to user after submit...also info is redisplayed when coming back to edit page.
there is a fixed relationship between term_user and vocabulary/term_data....

doing first commit, have a working userstag module called userstag.module....since this project already existed copied/renamed the functions.