[sharp]

First, can I get by with the 128 MB of Ram or do I have to have 256?
Next, what is the best way to upgrade to Windows XP. I am thinking about re-formatting my hard drive first and putting Windows XP on this way (a clean install). but I am not sure I know how to do this and get my computer running again. The reason I wanted to re-format my hard drive is I have files from Lotus that I could not get off my hard drive plus other files from doing things wrong in the past.
I would next exact information on how to re-format and re-install everything. Do I need a special start-up disk or something?
I have a lot to learn about computers but want to.
Thanks.