SSL VPN Login Page: Any way to add graphics?

Regarding the SSL VPN Login Replacement Message. I can upload a grahpic (corporate logo) to the FGT and update the page' s html to display the graphics. It displays fine on the FGT GUI panel, but when I actually browse to the login page, the logo does not display. I' m using the %%IMAGE:logo_lgs%% keywork as follows: ... <center> <img src=%%IMAGE:logo_lgs%% /> </center> ... Does anyone have any suggestions?