No step by step I fear.
I have no Windows ME machines to create any new instructions.
Try this -> http://www.wilderssecurity.com/archive/index.php/t-4350.html
They used BHBLASTER (sorry we are looking at a 15 year old OS system here) so we have to hope the old things still work.
Which means I have to pull out the new tool that runs on ME but is not as easy for some. http://test.trendsecure.com/portal/en-US/tools/security_tools/hijackthis runs on Windows ME and you could scroll down to the BHO entries and remove ALL OF THEM.
NO BROWSER ADDINS are required for IE to function.