Yeah, Mithra, you must devolute your rtw 1.5 to rtw 1.2 :)
Must download the 1.2 patch in zip format, that is somewhere here around :)
Then can run rtw with EB.
That all you need.
I dont remember the link, but I am sure you can find it in some post here around, i d/l it myself some time ago.
Bye