I've such s mystic problem. Web Console works well, but without any picture ... they don't reflect. On the other comuters the same! ... Service Pages are not installed I've JDK 1.4.1_12 + SD4.5 with SP18 on Win XP machine.
This is an outside possibility, but is there a permissions issue with the files/folder that the images are in on the servicepages server? If the http server can't get to them it can't serve them. Check the apache web log to see if there's an error.