It would be nice if tradehill better showed your referrals and how the referral fees are earned. I've got a lot of people signing up under my code but it doesn't show many anything until they start making trades.
Its is shown in profile.
For example, see mine below:
Referral Code: TH-R1682
Referral Benefit: 10% off commissions.
Referral Rate: 10.0% of all commissions generated.
Number of Users Referred: 2