I'm glad that so666 and some of you could solve the CTD problem saving those bmps in the mentioned format. Apparently, there are no common patterns because, unfortunately, that formula didn't work for me as the CTD was still there. Furthermore, I realised that all the C130_C6_T.bmp (including the basepack's) are saved in 16 bit (555) (which is supposed to be the culprit). So, in my understanding, it couldn't be the cause of the CTD because the rest of the liveries on all the other models worked perfect.

Why the model 23b worked for me and not the others? Because this model doesn't have the cargo compartment in VC, so it doesn't use the 2 extra bmps.
I realised that the textures in the C-133 have 2 extra bmps (C130_C17_T and C130_C17_L) that correspond to the starboard aft door. This C130_C17_T.bmp is saved in 32 bit format and THIS WAS THE CULPRIT!!!! At least in my case. Saving this bmp in 16 bit (565) did the trick for me. I have tested and retested all the C-133 liveries switching through all the view combinations and NO MORE CTD!!!

If so666 formula doesn't work for you, try this one... it might work.

Hope in God this will help some of you to solve the annoying CTD.