Computer active magazine has an offer on at the moment... you get 3 issuses for 3p and also back-issue CD-Rom number 7 which contains issues 157-182 in searchable, browseable printable format.
The subscription offer is totally risk-free. The 3 issues and CD are your to keep whatever you decide to do. If you don't want to carry on with the subscription at the price of £11.95 every 13 issues (6 months-worth of issues much cheaper than the cover price) then you need to write to to cancel before you receive your 3rd issue.
You can purchase via the website at the given link, or by phoning 0870 830 4968 (or 01858 438800) quoting the reference code "CN18".