BBPSTART/BBPGLOBAL logon page

Hi,

I am trying to edit the look of my SRM login page. When in SE80 for Internet Service BBPGLOBAL > Theme99 > HTML Templates > LOGIN - if i edit/publish this page it does not make changes to the logon page which is http://<server>:<port>/sap/bc/gui/sap/its/bbpstart

However, if i change the images in Internet Service BBPGLOBAL > Theme99 > Mime Objects > IMAGES > START then publish, it is reflected on my start page.

any ideas?