Upgrading the memory is quite a complex process, but if you are slow and careful it should not be beyond anyone. There are several videos on youtube of the process. I had never taken a laptop apart before and for me the key issues were removing the keyboard and removing the back cover. Finally when you swap the memory modules, make sure the new one is fully inserted, and while it is not ideal try and switch on the computer before putting all the covers etc back on. If you want to be completely safe I suggest you completely reassemble before switching on. I now have 4GB of which 3GB is usable under a modified Windows 7 Starter installation.
Our friend and comrade IronFly has reached his 10,000th post to our little Community. During the last 4 years he has helped countless Acer customers providing help, advice and answers. The Acer Community team feels honored to count you as our friend. Thanks IronFly!