What steps will reproduce the problem?
1.tell me if my permissions.yml is correct
2.tell me if my permissions.yml is in the correct location. (it is currently just in the folder of my craftbukkit version.)

What is the expected output? What do you see instead?
permissions.yml to work >:(
What version of the product are you using?
1.6
Do you have an error log of what happened?

server permissions file permissions.yml is not a valid YAML: mapping values are not aloud here
in "<reader>", line 3, column 25:
towny.wild.build true
                      ^
Please provide any additional information below.
this is my permissions.yml file
to my knowledge it is all correct but when i run my server it has an error that says that i cant use ':' and in your example it says you can.

server.basic
    children    
        towny.wild.build true
        towny.wild.destroy true
        towny.wild.switch true
        towny.wild.item_use true
        towny.chat.local true
        towny.town.plot.claim true
        towny.town.plot.unclaim true
        towny.town.plot.notforsale true
        towny.town.plot.nfs true
        towny.town.plot.forsale true
        towny.town.plot.fs true
        towny.town.plot.perm true
        towny.town.plot.toggle true
        towny.town.plot.set true
        towny.town.plot.clear true
        towny.town.plot.claim true
        towny.town.claim true
        towny.town.claim.outpost true
        towny.town.delete true
        towny.town.new true
        towny.town.plot true
        towny.town.plot.clear true
        towny.town.plottype true
        towny.town.rename true
        towny.town.spawn.town true
        towny.town.spawn.nation true
        towny.town.spawn.ally true
        towny.town.spawn.public true
        towny.town.spawn.outpost true
        towny.town.toggle.pvp true
        towny.town.toggle.public true
        towny.town.toggle.explosions true
        towny.town.toggle.fire true
        towny.town.toggle.mobs true
        towny.town.toggle.open true
        towny.nation.delete true
        towny.nation.grant-titles true
        towny.nation.new true
        towny.nation.rename true
        towny.chat.general true
        towny.chat.town true
        towny.chat.nation true
        essentials.sethome true
        essentials.sethome.multiple true
        essentials.tpaall true
        essentials.tpaccept true
        essentials.tpa true
        essentials.tpahere true
        essentials.tpdeny true
        essentials.protect true
        essentials.protect true
        essentials.protect.damage.creeper true
        essentials.protect.damage.drowning true
        essentials.protect.damage.fire true
        essentials.protect.damage.fireball true
        essentials.protect.damage.lava true
        essentials.protect.damage.lightning true
        essentials.protect.damage.projectiles true
        essentials.protect.damage.suffocation true
        essentials.protect.damage.tnt true
        essentials.protect.ownerinfo true
        essentials.signs.color true
        essentials.sleepingignored true
        essentials.protect.damage.fall true
        essentials.home true
        essentials.spawn true
        essentials.realname true
        essentials.rules true
        essentials.seen true
        essentials.mail.send true
        essentials.me true
        essentials.motd true
        essentials.msg true
        essentials.msg.color true
        essentials.msg.format true
        essentials.msg.magic true
        essentials.ignore true
        essentials.info: true
        essentials.itemdb true
        essentials.list true
        essentials.help true
        essentials.help[pluginname]: true
        essentials.helpop true
        essentials.compass true
        essentials.depth true
        essentials.getpos true
        essentials.worth true
        essentials.afk true
        essentials.pay true
        essentials.balance true
        essentials.balance.others true
        essentials.balancetop true
        essentials.eco true