I copy and pasted the files in over ftp, over writing the orginals and when going to my plugin panal in admin cp i get,
Fatal error: Cannot redeclare class MyBB in /home/chaoscr1/public_html/inc/plugins/class_core.php on line 12

Reupload the files again, making sure you get them in the right directories. You shouldn't have put either files in the plugins directory, so delete the 1.4.7 files from there.
Yes, you simply overwrite your copy of ./inc/datahandlers/user.php and ./inc/class_core.php with the ones from the changed files package... there's no class_core.php in the ./inc/plugins/ folder so not really sure why you've put it there.
Working thanks for the help, put the core file in Plugins instead of inc, for some reason (o.0) ta
(2009-06-15, 09:19 PM)Loonatic Wrote: [ -> ]I copy and pasted the files in over ftp, over writing the orginals and when going to my plugin panal in admin cp i get,
Fatal error: Cannot redeclare class MyBB in /home/chaoscr1/public_html/inc/plugins/class_core.php on line 12

I think you should manual upgrade