Oneworld doesn't list prices anymore because most countries, and the EU, have prohibitions against advertising airfares that aren't inclusive of taxes and fees. And because every RTW ticket is different - different national taxes, airport fees, carrier charges etc. - it's impossible to comply with those rules, so they just pulled the fares.

A couple of third party services like KVS - http://www.kvstool.com/- and Expert Flyer - http://www.expertflyer.com - have fee-based services that will allow you to query RTW fares, but these require "premium" memberships. Or any travel agent can pull them up off the GDSs for you, if you have one you're able to ask. You can also price it using the very wonky and unreliable online tool from Oneworld (a scandalous piece of electronic junk) but it will take a toll on your soul to do it.