Trouble with a backup

I had a server crash that took out all my mysql databases. My version 2.8 backup won’t run. I have put in a version 2.65 backup in a new 2.8 installation but Scheduling doesn’t work and image uploads seem to function but they are blank.

I have installed a version 2.65 testsite, thinking I would upload the 2.65 backup to it and then upgrade, backup and use it on the correct site. I adjusted the urls and database name to match the testsite name. It breaks the site with the following error message

Warning: array_keys() [function.array-keys]: The first argument should be an array in /home/ontfinco/public_html/mytest/wp-includes/widgets.php on line 686

Warning: Invalid argument supplied for foreach() in /home/ontfinco/public_html/mytest/wp-includes/widgets.php on line 686

Warning: Cannot modify header information - headers already sent by (output started at /home/ontfinco/public_html/mytest/wp-includes/widgets.php:686) in /home/ontfinco/public_html/mytest/wp-includes/pluggable.php on line 770

Any suggestions to either

1. Fix the functionality of version 2.83

or

2. Do a correction of the errors which will allow me to load the 2.65 backup

Thanks for any help.