I recently aquired two Cisco 2513 routers. I am attempting to upgrade the IOS and am having the following problem. The routers are 2513, 16384 KBMemory. System flash memory partition 1 contains 8192K with image C2500-js-l.112-17.P.bin and system flash memory partition 2 8192K contains image C2500-js-l.112-26.P4.bin. When I attempt to load the basic IOS 12.3 for the 2500 series I get an error that the image is larger than the partition and the previous image is not deleted. Is there a flash upgrade available for these routers? Do I have to delete the image on partition 2 before installing the new ios? What is the newest image I can load onto these routers?