There is a great site that I use to find the correct upgrades for memory. I would say your allowed up to a 1 GB if that is what the manufacturer told you. When looking for new memory all you need to know is certain parts of the Chip description you would be looking for a 1gb version of 266MHz DDR266 PC2100, 184p DIMM, 2.5v if you look for that you should be fine. Also just so you know the reason people may be saying 2 gb is because you may be able to fit 2 gb in your PC but that doesn't necessarily mean your computer will recognize it as anything more then 1 gb.
I wouldn't buy from them but they are great at giving you the correct info. You can also have them scan your current computer from the home page to be sure you are looking for the right stuff.
Edited by S133P3R, 02 April 2008 - 12:56 PM.