Not having any trouble with adding contacts on 7/29 Standard w/ Tachi (didn't clarify before, sorry).
On another note -- I mentioned that I would write up a 'little' guide to automatically customizing the Start Menu after a flash using Sashimi, and I got a little carried away this afternoon typing it up. So, instead of posting it in here, I started another thread. I hope it can be of some use to someone. Enjoy.
A Guide to Automatically Customizing WM6.5 Start Menu