Happy Fran,
PPL first is usually a dead give away of Modular, however, not always.
There is something called an Integrated CPL course, which is how CTC were listed on the CAA approval page last time I checked it. I suspect this is because they don't provide the ATPL theory, rather, they sub it out to BGS's DL course, hence the reason for the PPL first at CTC might actually be pre-requisite to get onto BGS' ATPL theory DL course. CTC are Integrated, but not ATPL Integrated, unless things have changed in the last month. It doesn't really seem to matter in CTC's case though, as the unsecured funding option and the high employment rate make the Int. vs. Mod. debate a moot point for most wannabes as far as CTC are concerned.
As for PTC, it sure seems to be Modular that PTC don't mind people assume to be Integrated. Whether they actively promote it as such or merely let people assume it is such, I can't tell, so it is buyer beware.