Your Boot.ini should only have the following after implementing the changes I suggested:

[quote][boot loader]
timeout=0
default=multi(0)disk(0)rdisk(0)partition(1)\WINDOW S
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Micro soft Windows XP Professional" /fastdetect<hr></blockquote>

This is the entire contents copied and pasted out of my own boot.ini. On Yours, the dual boot is reported as the two extra lines listed under [operating systems]. The word 'multi' at the beginning of each line has nothing to do with dual booting....