Everything's correct - if you ride with number 7 or 15 you ride as a reserve rider and you can replace any of your team mates up to 4 times (5 if TR is used). You have to ride in at least one heat, which is heat 2 in Division 1 & 2 (or heat 1 in Ekstraliga).
Apparently Emil's crash was quite serious and he suffered concussion - not sure he'll be able to ride tomorrow for Coventry...
The crash in pictures: http://www.sportowefakty.pl/zuzel/2011/06/19/upadek-emila-sajfutdinowa-i-mateusza-szczepaniaka-zdjecia/
He's ok. Got excluded in his second race for causing a crash. Then in his fourth ride he was replaced by one of Bydgoszcz juniors to give a kid an extra chance to ride.
Booked mine about 1.30 am on Sunday night, no problem at all (except the website working really slow).
Then I got two e-mails...
...one right after booking:
...and then another on Monday morning:
The only inconvenience is the website working very slow.
PS. Paid by a Visa credit card.