SUCCESS - thanks @Omega303 guide looks awesome - finally got it to work after hooking up my resistor correctly this time (using the 5v power source though -- I changed my pin # to 19 instead of 0 and it worked):
awk -F= '/t=/ {printf "%.03f\n", $2/1000}' /sys/devices/w1_bus_master1/28-0215718f9dff/w1_slave
21.500
Yeah!
@Miguel-Corteguera you'll need to create the file (touch) then insert the line with the correct pin # as instructed above
@Omega303 ah... I tried hooking up a a 4.7k resistor last night but obviously read the diagram incorrectly: http://monosnap.com/image/ideZC9zI136vSFrAo9LC2747TTcqio not sure what i was thinking LOL -- I'll try again tonight and let you know how it goes. Thank you!
@Miguel-Peredo it looks like @Omega303 is still in the process of putting together a guide 
What @Omega303 mentioned above is you do following steps to get the 1 wire running:
Upgrade your firmwire to the latest (via the gui under settings is easiest)
touch /etc/modules.d/55-w1-gpio-custom
vi /etc/modules.d/55-w1-gpio-custom
Then add this one line (replace 19 with the pin # you want to use):
w1-gpio-custom bus0=0,19,0
I'm currently not getting a read from #3 - so that's where I'm stumped (any advice with the comments above?) 
but at least I know w1 is running.
@Omega303 ok sweet - I got the w1 running it seems thank you! The sensor id folders keep changing with no w1_slave file present (which I assume means it keeps trying to detect my sensor but isn't getting data from pin 0 as I configured it. Do I need to put a resistor or does my current setup look correct (5V red, GND black and yellow pin 0) http://monosnap.com/image/HSxZm5p6mUS8iF5uvhtqgJxtScR7te ? (I checked the current I'm getting 5v which means I didn't totally botch the soldering job)
root@Omega-088F:/sys/devices/w1_bus_master1# cat /etc/modules.d/55-w1-gpio-custom
w1-gpio-custom bus0=0,0,0
root@Omega-088F:/sys/devices/w1_bus_master1# ls -la /sys/devices/w1_bus_master1
drwxr-xr-x 4 root root 0 Jan 27 03:47 .
drwxr-xr-x 6 root root 0 Jan 1 1970 ..
drwxr-xr-x 2 root root 0 Jan 27 04:03 00-280000000000
drwxr-xr-x 2 root root 0 Jan 27 04:03 00-c80000000000
lrwxrwxrwx 1 root root 0 Jan 27 03:47 driver -> ../../bus/w1/drivers/w1_master_driver
lrwxrwxrwx 1 root root 0 Jan 27 03:47 subsystem -> ../../bus/w1
-rw-r--r-- 1 root root 4096 Jan 27 03:47 uevent
-rw-rw-r-- 1 root root 4096 Jan 27 03:47 w1_master_add
-r--r--r-- 1 root root 4096 Jan 27 03:47 w1_master_attempts
-rw-rw-r-- 1 root root 4096 Jan 27 03:47 w1_master_max_slave_count
-r--r--r-- 1 root root 4096 Jan 27 03:47 w1_master_name
-r--r--r-- 1 root root 4096 Jan 27 03:47 w1_master_pointer
-rw-rw-r-- 1 root root 4096 Jan 27 03:47 w1_master_pullup
-rw-rw-r-- 1 root root 4096 Jan 27 03:47 w1_master_remove
-rw-rw-r-- 1 root root 4096 Jan 27 03:47 w1_master_search
-r--r--r-- 1 root root 4096 Jan 27 03:47 w1_master_slave_count
-r--r--r-- 1 root root 4096 Jan 27 03:47 w1_master_slaves
-r--r--r-- 1 root root 4096 Jan 27 03:47 w1_master_timeoutStarted to follow http://squidge.sourceforge.net/w1/ but I don't see a file named /etc/modules.d/<load sequence>-w1-gpio-custom to configure which pin is being used?
Also, tried reading with fast-gpio but I'm just getting a reading on 0 - should I expect a reading from this?
@Omega303 what did you do to read with kmod-w1-gpio-custom?
Newbie here -
I have a Gikfun DS18B20 sensor similar to the above (http://www.amazon.ca/gp/product/B012C597T0) -- I wired it like so: http://monosnap.com/image/HSxZm5p6mUS8iF5uvhtqgJxtScR7te
From what I can tell I have the latest firmwire cited above:
Firmware 0.0.6 (b270)
Latest Firmware 0.0.6 (b266)
My understanding is I need to figure out how to compile this: https://github.com/milesburton/Arduino-Temperature-Control-Library
Any tips to get this compiled and get a reading? Or is there anyway to use the fast-gpio tool from onion?