Best way to upgrade to SQL 2008 R2 from SQL 2005

Hi, 

i Need to upgrade a client from SQL 2005 to SQL 2008 R2.

i Ran the upgrade advisor and get the following:

Ok, image does not want to upload now...Will try in a new post..

Looks lto me like thee only issue i must sort out is the "upgrade advisor determined that full-text search is currently installed"? Is this correct?

Then also what woul dbe the best way to upgrade? i Am tempted to insert the new SQL media and see if you can upgrade SQL? Or should i install SQL 2008 on a different instance and move the DB's? Sharepoint might have issues with this...

Thanks!