I'm waiting on a reply from one of the places you pointed me to - if I can get a deal to work out, you and I need to discuss a finder's fee or something. You may have saved me years of waiting and searching.
IDW currently has two running universes the ReGeneration 1 which continues the US Marvel stories and their own continuity. So yes to answer you question all of the things I listed are in the one countinuity which is basicaly a re-imagining of the G1 universe.
The simple reason is that you can get REALLY confused if you read it in a chronological order because there are a lot of plots are designed to work in the non chronological/release order. Plus a lot of spotlights tend to have their timeline all over the place like Ultra magnus starts in the past, yet it finishes in the present as a prelude to Escalation. That sort of thing.
Then we go back to the ongoing part that is worth readin and that the #19 - #23, especially the issue #22 and #23 as again those are some of the best issues ever printed out and as they surve future purpose.
After those there's the reast of the ongoing series going from #24 - #31 which again goes back to being pretty bad.
And then we get to the ones that all of us are raving about. You need to read the The Death of Optimus Prime one shot which then continues More Then Meets The Eye #1 after which there is a split and you have the two ongoing comics More Than Meets The Eye and Robots in Disguise that are currently ongoing and both are phenomenal!
So yeah that's the IDW reading order the way I like it Hope it helped
Then you get to the truly bad The Transformers series. I really don't recommend reading this you're better off reading the summaries on wikipedia but if you want to read it the order is
#1 - #6, then the Bumblebee mini series, after which there's the Last Stand of the Wreckers (which is a MUST READ as it's one of the best TF comic ever made).
Then you go for the #7 - #18 after which you go for the Ironhide mini (which is not bad but not good either).
Then there's the two issue Infestation crossover which again is pretty bad and the APSOLUTE WORST PIECE OF SHIT that is Heart of Darkness. Just don't read it. Just don't. Use the tfwiki or something. (cont.)