Can I get away with no upgrade? I am on 1.3.9 and wondering if I should just get over the pain of it all now and do upgrade because I guess upgrades are quite often?

If so, what is my best option for not stuffing it up!- which instructions are best for someone highly likely to stuff it up!?

So far instructions I've read are complex, if you forget one little thing it will come back to haunt you!

There must be a simpler way......