Baby Hormones - I read your post as saying that you are flying in the right hand seat of a single-pilot aeroplane that is not required by JAR-OPS to be flown multi-pilot. In this case, none of the flying will count towards the requirements for the ATPL, or any other licence or rating come to that. Neither is the flying Dual, unless you are receiving instruction from a FI or CRI, all you are entitled to claim is SNY, which is no use to man nor beast.
Of course, you can put what you like in your logbook but the CAA are red-hot on checking this sort of thing when you apply for a licence or rating and it would be a shame to find yourself being prosecuted for falsification of a legal document.