I am trying to update IPCOP, do I have to apply all patches in order?

IPCOP updates need to be applied in the correct order. If you have a 1.4.5 install and the current version is 1.4.10, then you must apply the patches in the correct order (i.e. 1.4.6, 1.4.7, 1.4.8, etc) and reboot as required (so new kernels are applied).