Utokverek

Hey, I've got a simple little table that has only 3 fields. ID (primary key, auto-increment), cat_name, and cat_num. I need to know how to get my php script to go into that table, and increase the value in cat_num by one on every row. So for instance, here is …

My PC now has winXP Pro. If I also wanted to have win98 installed for whatever reason, would that work? How would I install win98 separate from XP? Then how do I use one op sys at a time>? Is this an unusual situation? Am I being unreasonable? Thanks