If you are a corporation, you have to go to the top right and select COMPANY PROFILE




On your company profile you will find a little box up there on the left where you can select UPLOAD button to add/update your LOGO



If you are a Travel Management Company, you have to go to the RFP MANAGER


Then go to OPTIONS



Then go to customers


Select the MANAGE button on the right hand side of the customer name



Select CHANGE LOGO



Select your file and upload your  LOGO