no worries in that regard - you send the pills (anonymously) not to them, but to Drug Detection Labs (DDL) which is a DEA-licensed firm, specializing mostly in drug-testing, mostly for work, schools, etc. I was just taking your question as an opportunity to give the Erowid guys a nice word.
As such, you may not be surprised to find out that the lab does not regard this program to be their highest priority, and may simply be taking their sweet time. Go ahead and email e-data. You're extremely cool (and smart) for taking the bother to participate in this program, and I'm sure they won't mind hearing from you.