I think your best bet would be to create a new theme and set it as default theme in web.config for EPiServer UI, the default theme used is called "Default": C:\Program Files (x86)\EPiServer\CMS\6.1.379.0\Application\App_Themes\Default

Frederik

Copy to a source code controlled local folder within the website is a good way if you need to be able to change HTML.

I don't think Themes will get you into CSS/images for the newer "Shell" views such as Online Center etc.

Cheers for the info, will try both methods and see what fits out needs the best

Using Theme's alone i do not think it is possible to modify the EPiServer Logo although colours and some other icons looks promising

Right i have created a new themes folder locally and updated the App_Themes_Default value in EPiServer.config file with this i can now update the logo shown on the top right, although where can i change the link, I cant seem to find where the user control is for the global header

as i thought the ur;s are hard coded in the assembley therefor cannot be changed

Response from EPiServer below

Unfortunately I'm afraid that you cannot change url of that logo since it was hardcoded in assembly.

You can find it is set in method GetMenuItems() class ShellMenuProvider assembly EPiServer.Shell.UI.dll by refletoring.

I guess you could add a HttpModule last for the UI-folder and replace the rendered markup if you really need to change the logo-URL.