You can't redeem miles/points for a oneworld explorer ticket. The oneworld explorer ticket that is discussed in this thread is a paid round the world ticket.
If you want to redeem miles/points and go around the world or something similar and you have AA miles then look at this thread in the aa forum:
http://www.flyertalk.com/forum/ameri...ers-award.html
And this chart on aa.com:
http://www.aa.com/i18n/disclaimers/oneworld_awards.jsp

If you have BA miles then you can redeem segment by segment or on multiple carriers by mileage:
http://www.britishairways.com/travel...s/public/en_us
http://www.britishairways.com/travel...s/public/en_us

If you have points/miles for other carriers you will have to look at the rules for those carriers. Generally, a flight must be available to book it.