The threads you need are here:
WWW’s Big BA CEP posting
http://www.pprune.org/ubb/NonCGI/For...ML/000865.html
WWW’s Aptitude testing infomercial
http://www.pprune.org/ubb/NonCGI/For...ML/001092.html
Jonny’s day in life of EI aptitude tests
http://www.pprune.org/ubb/NonCGI/For...ML/000203.html
Fascinating, Captain’s Class One story
http://www.pprune.org/ubb/NonCGI/For...ML/001274.html
Bet they don't work as hyperlinks but I'm not that good.
As for feedback they do do it. Kindly they invited me back when I asked them and we had a really useful chat. They can't do it for everybody and may just offer a telephone debrief. I recommend you try. In fact there is an issue in that under new EU employment rights you must be shown results or offered feedback. Don't be pushy though for obvious reasons and they are busy people.
Yes you have to wait a year. If you get hold of an application form 'somehow' and apply a bit early (like 10 months) you'll get away with it but again - don't take the p__s.
Best of luck with trying to find something constructive to do for the next year. Its a great scheme and well worth persevering with.
WWW