Manual uninstallation:(Backup your DNN always before)

Option A: Restoring from a DSLocalizator backup

DSLocalizator makes a backup of your default.aspx each time the hack is installed. So there are files like the following at your DNN root

default.aspx.DSBackup.2005-12-04.20-00-57.resources

If you did not make any modifications to web.config after the date specified in the file name, the you can just replace your web.config with your last backup file

Option B: Modifiying default.aspx by hand

Edit your default.asp and locate:

Inherits="Delisoft.DNN.PageBases.MyLocale"

and change to:

Inherits="DotNetNuke.Framework.CDefault"