Thanks for the reply Aaron.
Mambo's search engine friendly URLs just get me URLs in the form
www.example.com/content/view/111 instead of urls like
www.example.com/abdc?xyz=122&pqr=000
Xaneon Alias Manager gets me URLs that can have proper explanatory words like
www.example.com/news/new_mambo_release.html
So I need both working together.