Ed,
I reread the email. It took me a few reads to get it.
The idea is to link an interior designer, their client, from my site to the client's site.
I just wrote them to find out who the client is. It is that simple.
If it is a great fit I will ask for a similar linking of my site. If it is not a fit oh well nothing lost.
Addition as I look this over again...I do not like their ethics. Too much of a bait and nothing in it for me.
Dave