Look in the description box of any recent video or look at any of the guides I publish in the guides section on these forums - they always contain the most recent link to a world download.
Terraria Community Forums
DicemanX
thatguywhoplaysterraria
But I want to download other peoples worlds on the fourms so how do I do that BTW is the newest version of your ultimate world 10.1 and can you put some 1.3 items in your next version pls 
Jerion 'Wyverntamer' Kràl
He just said how, they are in the guides he publishes here.
DicemanX
Newest version is 11.1:
https://drive.google.com/file/d/0B4b_4cIU1vVBbFRSbHFFaFVYUDg/view
I'm still in the process of fixing/updating farms broken by 1.3.
https://drive.google.com/file/d/0B4b_4cIU1vVBbFRSbHFFaFVYUDg/view
I'm still in the process of fixing/updating farms broken by 1.3.
thatguywhoplaysterraria
But other peoples maps
DicemanX
What other maps did you want to download?
thatguywhoplaysterraria
Does this version have 1.3 items
thatguywhoplaysterraria
I want to see if other people have made maps and how to download them
thatguywhoplaysterraria
BTW did you make your ultimate world from scratch or with a program
DicemanX
If you want other maps then search curse.com. If you're after any or all of the 1.3 items:
http://www.curse.com/maps/terraria/builders-workshop
http://www.curse.com/maps/terraria/builders-workshop
thatguywhoplaysterraria
k will you put 1.3 items in any of your ultimate worlds though just wondering
DicemanX
Yes, eventually. I have some 1.3 items in the current version, but more will be added over time.
thatguywhoplaysterraria
SO are there 1.3 items in the latest version
DicemanX
Yes, in some of the chests in the Teleporter hub.