hi, im new in this forum and i have a problem, im starting to work whith MySql 5, but i was requested to install Microsoft Sql 2000, and i just cant eliminate Mysql 5, i have try by uninstall, by eliminating registry entries, and eliminate every single file, but when i complete the instalation of Sql 2000, i get this error:

once i get a similar problem, but was when i uninstal sql 2000 and instal mysql 5, but i fix it, and i think the problem is that the mysql user is root, and SQL 2000 is sa, and i dunnow how to change that, because i alredy eliminate every file in mysql.
P.S.: Sorry for my bad english, im form Argentina ^^