I believe I've properly followed all instructions, and when I launch the install file I set the proper directories like it needs. It appears to run through what I think is most of it's install procedure then gets to patching Fallout3.esm and I get the following in my install log:
[4/20/2014 5:58:24 AM] Patching Fallout3.esm...
[4/20/2014 5:58:24 AM] Fallout3.esm not found in E:\Steam\SteamApps\common\Fallout TTW\Main Files\
[4/20/2014 5:58:24 AM] Checking E:\Fallout 3\
[4/20/2014 5:58:25 AM] No patch for this version of E:\Fallout 3\Data\Fallout3.esm Exists. Install aborted.
Don't know why it's looking for Fallout3.esm in my TTM directory as I clearly have the proper Fallout 3 directory set in the slot it needs to be. Also, I have attached a screenie of what the installer utility says as well if it helps.
I can assure you that I'm running Fallout 3 v1.7.0.3, and it's an official, licensed copy. I don't think my specs have anything to do with this but can post them if necessary. Just suffice it to say the specs are pretty beastly and WAY overkill for the Fallouts and Skyrim. Running Windows 7 64 bit. None of my Fallout 3 files are read only that I can tell.
Anybody have any ideas? Sorry if this has been discussed and I didn't find it.