Suzy/Maudy how's it going? We did this during this week off, hurrah!!
DS is 2yrs 6mths. He knew what wees & poos were but wouldn't necessarily tell us when he'd done one in his nappy, but he had used the potty/toilet successfully whilst waiting for the bath to run.
Day one : we started on the monday after xmas, put him in new Mr Men (big fav.!) pants and trousers, and kept taking him to the loo/potty every 30-45mins. Had 7 accidents and two successful trips (but more lucky timing than real successes!!)
Day two : pants and trousers - had 8 accidents and 3 lucky timings!
Day three : an hour on the potty in the morning (reading/singing nursery rhymes to occupy him) left us with no wees, and a nappy back on for the rest of the day as we prepared to concede defeat.
Day four : wonderful, wonderful nursery!! He asked for pants in the morning so I put them on but took copious changes of clothes/pants and spare pullups! They took the pants off (as mentioned before) as they said they gave some nippers a comfort feeling and so they didn't concentrate on their bodies sensations. They had only 2 accidents in the morning and none in the afternoon.
After that we took their cue and he was in trousers but not pants, until sunday when the pants went back on. He asks to go all the time now without prompting, unless his Nemo video is playing and we have to remind him as he fidgets reluctant to miss the film he's seen 1000 times! and we haven't had an accident since.
I'd definitely say give it a go you have nothing to loose. We were at the point of giving up, and although he was showing some signs of being ready he was also blatently ignoring others. If you don't succeed this time try the next time you have the time free, when they're ready it can happen very quickly. Sorry this is abit long/detailed, just wanted to say it can be done and good luck