I've finished about 6 321 WU's but no 321 stats are showing on my account page under tasks returned in the last 24 hours . Also, when I click the [Main Task] on those WU's its showing someone else's account. I thought fast double checking was on for 321?

Yes, 321 is on fast double checking, with LLR2.

There are two types of work units. Let us call them "Main Tasks" and "Proof Tasks". The former are long tasks that give a lot of credit. The latter are much shorter tasks, with much less credit, that do a verification of a certificate produced from a Main Task.

If the tasks you did, have a link called [Main Task], then your tasks were the short proof tasks. These are not included in the 24 hours stats. Once you complete some main tasks (which have a link called [Proof Task]), they will show up in your 24 hours stats.

A main task and its corresponding proof task are independent, in a sense. It is random whether they are done by the same user or two different users. So not strange that the main tasks belong to other users.

/JeppeSN

Thank you for clarifying JeppeSN!