It's OK, I wouldn't be posting on the forums if I didn't enjoy helping others.
The second error from the bottom can be fixed using PM2IM. (The .im file mentioned is the one to look for when using the Open box)
The other ones, though, I will need to investigate further. (The bottom one will need a graphic editor program to fix it)
Unfortunately, the other ones may be difficult to fix (new .tga files may need to be created for the asset - you may have to contact the content creator for advice on that one - they may have already created new .tga files)
The .texture.txt files seem to be in binary format (or the files mentioned are in .texture format, which Images2TGA should be able to sort), which I will investigate further.
Shane