Reconsider "join other orgs" user flow

[reginafcompton]

From Ireri:

the only thing I noticed is that only after you pay and register, you are given additional options for joining other organizations. I guess it’s fine and works, but I also like the possibility of selecting the kind of membership you want so you only go through PayPal once.

[reginafcompton]

From Karen Smith:

the only other concern I have is that I don’t see my other memberships that I also paid for, listed.