The 'error' payments are there because you have not set sufficient trust with dividendrippler.com (rfYv1TXnwgDDK4WQNbFALykYuEBnrR4pDX). You'll need 3 lines of trust, one for TRC, BTC and LTC. Try increasing the trust - you'll have to type in LTC and TRC, they are not in the dropdown box. After that, send 1 XRP to rfYv1TXnwgDDK4WQNbFALykYuEBnrR4pDX?dt=1 from your ripple address. This will flag our server to try issuing the IOUs in your account again.
I see that is your redeem address controlled by you, set up in DR. Once you have funds in your ripple account, try sending them to rfYv1TXnwgDDK4WQNbFALykYuEBnrR4pDX?dt=100009111. Note this is the dividendrippler address, followed by your account number. The account number 100009111 tells our servers to send the specie payment (in this case BTC) to your 186ZJv7Bm1ydrsVxPDuVtdJNZZUwAXL2jH address. A fun trick is that you can send LTC, TRC, XRP, (or bitstamp BTC ious) and it should find a path to be withdrawn as BTC if you select it as so.
Same applies as above. What is super cool about ripple is that you can have TRC, LTC, XRP, etc in your ripple address, but don't have to withdraw in kind! You can accept TRC payments to your personal account (1ANrAZTYRbnG4opQ9XfpENGvCcKEW42FbR), but can withdraw as LTC or BTC, or even send yourself XRP. Of course, what is happening is that ripple pushes them through a market or finds someone willing to hold DR IOUs for Bitstamp IOUs.