Hello Dave,
You should have received a welcome email with a subscription number by now which would let you access the archive.
<edit> Check your spam folder in case your email with the subs number is there.
Assuming no problems and that you will start form the next issue (the default) if it is MEW you subscribed to it will be out in about a week and a half (digital) and about 2 weeks for print.
If you contact help using the details at the bottom of this page: http://www.model-engineer.co.uk/editorial/page.asp?p=908 they can check your subscription has gone through OK and make sure you get what you need to activate it.
Customer Service (UK + Overseas): +44 (0) 1604 828 748
• Model Engineer: help@me.secureorder.co.uk
• Model Engineers’ Workshop: help@me.secureorder.co.uk
Let me know if this doesn't get you sorted.
Neil
Edited By Neil Wyatt on 07/03/2018 22:00:05