I looked and the files listed were not available to download. Not only that but the instructions are very un clear. He says " download apn backup, download the file then back it up then load the file into your sd card." For one, is he talking about 2 different files? Can someone just point me in the correct direction? I searched and the file was only available for download 10 times and it was reached.
Here's the deal.
APN Backup & Restore is an app in the market - it's free. What it does is it records APN settings into a file on your SD card. And then, if you want, you can later restore those same settings. The file it stores the settings in is a .XML file.
What one previous poster told you was that you could load a ROM where you knew MMS was working, and use "APN Backup & Restore" to store a copy of those settings on your SD card (backup). Then, when you are in Aloysius V12, you again use "APN Backup & Restore" to load that file off the SD card into Aloysius (restore).
But, someone has already done the first step for you:
xda-developers - View Single Post - MMS Issues?
In that post, he attached a .zip file with the .XML file inside it (from Ivanmmj's Official 1.0 ROM, I think). Certainly you could download that file and use a File Manager (yes, on your phone) to unpack it and put the .XML file in the root folder of your phone. (Note that to download things that are attachments on XDA, you need to be logged in.)
If you want a more direct route, Andrizoid posted up a link to the identical .XML file
on his site:
Patches and Extras