upgrading from modx 2.0.2 to modx 2.0.3

HI I have a question, I have upgraded my site to Revolution 2.0.2 because of security issues I have downloaded 2.0.3

To upgrade do I just overwrite the existing files, and if I do will all of my current documents, chunk. templates etc be saved?.

I have read http://rtfm.modx.com/display/revolution20/Upgrading+MODx#UpgradingMODx-UploadingtheFiles

Your resources will remain (they’re stored in the database not in the filesystem). So you can overwrite your php files, then run setup and you’ll have 2.0.3 with all your resources created with 2.0.2.

If you want to be safe just make a backup before upgrading.

Thanks for the reply

HI I have run set up and I am stuck on

Connection character set: utf8
Collation:: utf8_general_ci

I have checked phpMyAdmin and I am 100% using the sames Character set and collation, I am click on

Create or test selection of your database. but nothing happens does anyone know a solution?