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.
Please join me in congratulating IronFly who is the first Acer Community Member to achieve the rank of ACE Pathfinder. IronFly has shown a consistent willingness to help others and has worked hard to earn this new Rank. Congrats and Thank You IronFly.