Thanks for your answer. Not sure if Im using the additional files or not, maybe there is a cisco site that shows what they are used for? I just didnt want to delete them then discover later that I need them to run some protocol or feature?? I guess I can delete the one file you mention plus the old IOS file and that will give me just enough space.
if your booting IOS is c2800nm-advipservicesk9-mz.123-14.T7.bin then you can delete c2800nm-advsecurityk9-mz.124-3i.bin but before doing that keep a copy of the IOS with you for safer side also make sure that "boot system flash:c2800nm-advsecurityk9-mz.124-3i.bin" command is not there in your configuration.