Register on two different websites:
minecraft.net
and
of course this one we are on now :p
Keep this site (worldofminecraft.com) up in one tab and minecraft.net  in another. Rather than havin u search for it, follow this link. idk its sorta like an add-on for WOM realms on your desktop. You can just throw this in the corner of your desktop or wherever you please.  Heres the link --> https://www.minecraft.net/servers.jsp
Thats just another page. from there, at the top of the screen (no need to scrool down a single bit) Click the link in blue words that says "the server software" I just threw it onto my desktop.
Anyways, ima goin braindead here cuz im sooo tired from perfecting a level id so love for anyone to try and especiall try accessing my fortress lol :D anyway if u interested  in it, lemme know. *inspired and determined villainous look on his face* hehe lets go back on topic lol shall we? ^__^
As i said im a lil gettin on the sleepy side and according from what i remember this should work out.
Next open the WOM icon/program (different from the "minecraft" app. If you need the link lemme know  cuz ill get it to you in a flash) :) Anyway you wanna open that up and when you do a small windo appears. Now heres the twisty tangly confusing part some get lost on and do the wrong thing: It asks for your username and password. Well if you did what you were supposed to do previously, you should be registered not only here, but on minecraft.net too. Anyway that username and password is not the one you have for this site, but the other one. To log into WOM client, you use your minecraft.net user and pass, again, not the one you got for this site. Anyway you just enter your username for minecraft.net (not your ful email, unless u set it as your username, your username you created which can be watever u want)...
There you go im pretty sure. If still havin problems, then pm me and explain. i think i got all the details. if not ill add to this if any other details come up. And oh if these instructions were complicating, i can retype so that you can understand better, itll b no problem. anyway. i hope maybe we meet on my map who ever succeeds in accesing the realms.

i hav 1.9 and it didnt work worth crap >~< maybe i got lucky, but maye not. anyways after i did this, everything worked fine with me. all my mods went right to work with no problems etc. but anyway if i get things up, wanna go on meh map lol? i never been online an i thought id try it . it dont gotta b u so dont feel obliged to waste your time ^^

anyway might i ask a question? where do i go from logging into the client. do li leav it blank an continue?