I note that you excised my link to the raging inferno in WTC5 and can only conclude that you do not like the comparion with the much,much smaller fires in WTC7 which NIST say caused it to totally collapse despite it being one of the strongest steel structures ever constructed in the World history of cuch buidings. I repost the link to WTC5 for completeness.
http://www.youtube.com/watch?v=41OCQvu7ULQ WTC5
The rest of your post is rambling and indecisive so I will lay out the framework for why I think smoke generators may have been used in WTC7 to create the illusion that 'where there is smoke there must be fire'.
Ifyou look at the video of WTC5 burning you will note that the heavy smoke is not apparent in the areas where there is serious fire.It appears to be rising away from where the raging inferno ends near the top of the buiidng.
In WTC7 the heavy smoke begins more or less at ground level, indicating that there was no raging inforno inside (otherewise we would have seen roaring flames and no smoke inthe area of fire, as can be seen in the WTC5 video). Considering that the fires were supposedly started by rubble from the North Towr we can easonably assume that the fires were right inside the South Wall where the smoke was coming from. So you see where I am going ? Small fires producing a mountain of smoke can only mean one thing--smoke generators like the one n the video I showed earlier.