hi thanks everyone for your replies and apologies for the late reply
i found your comments very helpful, gave me a lot of support with making my decisions.
definitely i'll gradually upgrade to the next version of SEP as most have suggested.
Thanks for pointing out important points like EOL/EOSL, Compatibilty and Best practices. I was aware of some compatibility issues with the current SEP version on our network but not the EOL/EOSL, i missed that during my findings, thanks for bringing that up.
you know companies are money cautous many times and i just need to do some home work first before getting bold with my recommendation of a SEP upgrade as well.
thanks for the supportive links too guys
appreciate your time
gust