[ExchangeList] Exchange 2003 FE and BE Patching

Hi Guys,
 
Just going through my exchange servers, Exchange 2003 SP2. We have an FE / BE config, and I notice they have not been patched in a while.
 
Any Patches we need to watch out for? also I guess you patch the Front end server first before the backend?
 
Thanks
 
Patrick

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