Notes:
[5-20-2014] - Updated 4.4 Apns to smaller format.
[11-1-2013] - Added Lite roms for both v7 and v8. v7 is 4.2 and 4.1, v8 is 4.3.
[10-30-2013] - Did some fiddling with making a universally accepted apn. I usually test everything before I upload it. That being said this is a test version I haven't used yet...
[9-23-2013] - New installer script courtesy of VoluntaryMan. Implemented as hotfix.
[9-20-2013] - Injecting the APNs into the rom before flashing seems to help. In my experience the system lost the apns after the first reboot and flashing them again made them stick.
[9-9-2013] - If its still not working, LGNPST the Teeny Original bin then the Teeny Alt Bin SLB Stack. Do one, the phone restarts; then do the other.
[8-27-2013] I am going to try to assemble a Frankenstein's Monster APN with every Sprint/Ting APN I can find and give that a shot too. So if the lights start to flicker you'll know why...

Unsuccessful so far...
[8-23-2013] update: Pulled the APN Stock files out of the ZVB rom... 3 different apns; looks like US, EU, KR.
ZVB Stock Deodex APNS
[8-23-2013]I'm going to try to pull the APN from a stock rooted phone at some point to compare with the clean, and custom ones. If anyone has one just pm a link. thanks.
[8-7-2013] Also am having some success with reflashing the jb modem. gives me the you've lost data error when im in the bathroom and loose data but not sending multiple sms messages.
[7-12-2013] If you use a Custom User Agent, (messages > settings > custom user agent) dont use iphone as Ting does not support them.
[7-2-2013] Some Ad Blocking programs will block mms. idk why the phones apns are not excluded from the shiz but adding your apns to the white list or removing the app should fix it.
manual fixes
fix 1
Open Voice Dialer, say "Open APN's"
Change all
http://mms.sprintpcs.com to http://mms.plspictures.com
Select one of the profiles with the correct MMSC in it.
Reboot
fix 2
Open your root explorer, navigate to /system/etc and find apns-conf.xml
Copy it to another location
Change all instances of
http://mms.sprintpcs.com to http://mms.plspictures.com
Copy and paste it back into /system/etc - overwrite old file
Reboot
DEPRECATED METHODS
============= 4.4 KITKAT =======================(9-20-2013) Flash Via Recovery
octhrope 4.4 ting apn
octhrope 4.4 lite ting apn Removed over 15,000 lines. 324k to 5k
stock kitkat 4.4 apn This is the stock AOSP apn from 4.4 (you probably dont need this)
octhrope CM11 Ting Apns
============= 4.3 JELLYBEAN =======================(9-20-2013) Flash Via Recovery
octhrope ultimate apn v2
octhrope ultimate apn v2<<< New Installer Script
octhrope ultimate apn v1 < contains a typo but is working for me on AOKP 4.3
octhrope ultimate apn v1<<< New Installer Script
This is a fire bomb of every Ting / Sprint Apn I have acquired...
octhrope ultimate apn v3 TEST VERSION
============= 4.2 JELLYBEAN =======================(9-9-2013) Flash via Recovery
octhrope apn v13
octhrope apn v13<<< New Installer Script
octhrope apn v13 lite(only sprint apns listed)
octhrope apn v13 lite.zip<<< New Installer Script
octhrope apn v15
octhrope apn v15<<< New Installer Script
============= 4.1 JELLYBEAN ===================(8-29-2013) Flash via Recovery
octhrope modified ting apns V9 8-29-2013
octhrope modified ting apns V9 9-23-2013<<< New Installer Script
original ting apns flash via recovery
original ting apns original thread
This will fix LTE for all and mms for most. Only use if octhrope apn does not work for you.
octhrope ting apns flash via recovery
octhrope modified ting apns updated 6-26-2013
I made this because mms wasn't working for me still. cant guarantee that this won't cause more problems since i have only tested it on my phone. (original ting apn plus proxies and ports)
octhrope ting apns v2 flash via recovery
octhrope modified ting apns V2
octhrope ting apns v3 8-14-2013 flash via recovery
octhrope modified ting apns V3 8-14-2013
While using octhrope modified ting apn v2
Setting a Custom User Agent TEMPORARILY Fixed the issue (messages > settings > custom user agent) Nokia N95.
did a bunch of testing and this is the only solution that was consistent. i suspect that Ting has no support for a generic android device on their network. after a couple days its back to not working.
fix 3
i did fix 1 but added the proxy and the port to all of the APNs (this might be wrong...)
proxy: 68.28.31.7
port: 80
reboot and sent picture.