Now that Stephanie is safely home from her 2-year stint in the Peace Corps, I can let out the breath I've been holding. She's asked me to write up something for the parents for the webpage. First, try to get as much information as you can. The web has advanced quite a bit since she went over, so it's much easier now. Seeing photos and connecting by email with other parents was helpful and reassuring.
Communication is difficult.
You need to accept the fact that some things won't make it there, and that sometimes you won't get through on the phone. Overall, we did surprisingly well, however. I numbered letters and packages and kept a list of what I sent and when I sent it. I used couriers whenever I could. Couriers are people who are going to Guinea and kindly offer to take letters or small packages for you.