Huge rebump, but I think this deserves it...
The captures from my investigation, over 12 years ago, have long been lost. I'm no longer subscribed to FORIX, and have no plans to subscribe again.
However, it was only yesterday that I found, by total chance, an incredible resource, hosted under the good old Atlas F1 website:
http://www.atlasf1.com/99/season.html
I have come across many archived Atlas F1 material, but this is the first time I've seen this. Inside you will find links to every preview and review issue of Atlas, and more importantly, full race lap times and gaps for every race of the season. They are available for each of the 1996-2004 season. For example, this is the link to the lap chart of the 1999 European Grand Prix:
http://www.atlasf1.com/99/gapchart.html?raceid=14
I am absolutely stunned: somehow, back in the mid and late nineties, they had access to this level of detail and published it in structured format, for free. (The "for free" part doesn't really surprise me, because back then everything online was for free). I'm pretty sure (but, as Murray would say, could very well be mistaken) this is not available anywhere on the net for recent years and races; certainly, not for free.
Following my second link above, you can easily reconstruct my whole investigation from 12 years ago, because you get real, full gaps, so if someone was lapped it will still show him being 2:15.437 behind the leader, not a lame "+1 lap".
They even had this feature for six pre-1996 "classic races" (I won't spoil them) here:
http://www.atlasf1.com/0000/season.html
EDIT: I found some more info about this. It seems they added all this data at some point in 2003:
https://forums.autosport.com/topic/5559 ... -atlas-f1/