All the default gif files that are called by Cleartrust/AXM exist under the agents $CTHOME\<agent version>\<agent>htdocs\images
For example, c:\program files\rsa\cleartrust\iis 6\htdocs\images
Under this directory, you will find the images the agents call in the default pages.
There are several icons under there, they are:
btn_create_pin.gif ct_isso.gif pghdr_home.gif
btn_go.gif icn_important.gif powered_by.gif
close_window.gif logo.gif spacer.gif
The logo.gif is the Cleartrust logo.
If you wanted to change the logo with your own companies logo, noting it must be sized properly, you need only to copy logo.gif to logo.bak and move the custom logo.gif, insuring it is also called logo.gif, into the images directory.
A restart of the webservices is not necessary.