A couple of questions about handling the invitations....
I am only inviting a small number of people. I am not all that worried about the OOT guests at the rehearsal, as the people at the wedding from OOT will actually be my fiance and I, and our families. So inviting the OOT guests is a breeze.

The dnner will be:
Me
My fiance
My mom and dad
My fiance's mom and dad
The BM+SO
The MOH (my fiance's daughter)
The officiant+SO
Total=11
We want the rehearsal dinner, but my fiance's father has never mentioned anything about paying. I am not even sure he is aware that he is sort of "supposed" to pay and we are NOT going to say anything. However, as we (or my parents, not sure as we are currently planning to pay for the dinner, but somehow when checks need to be written they keep beating us and paying first) are paying, we want to keep the guest list small. Which presents my issues....
1. My FSIL is "hosting" the reception but is not a part of the WP. In fact she has commented a couple of times that she will not even be at the wedding, as she will be at home overseeing the set-up of the reception. By hosting, I mean that we are using her home, at her request (she campaigned to have it at her house, even doing a "yard clean up spree and sending us photos of how good it looked" but she is not paying for anything. I do not plan to let her miss the wedding, but there are other issues with her so I am not stirring that pot until we are actually there and able to present actual solutions. However, as she is not in the wedding and is actually volunteering not to go (and for cost) is it appropriate to not include her?
2. If I do include FSIL and her husband, I feel that I am then obligated to imclude his other sister, her husband, his brother, and his wife. This is more than I can afford and more than I am comfortable allowing my parents to pay (they have been incredibly generous).
3. With the RD so small, how do we handle the actual rehearsal? Just keep it to the people invited to the actual dinner? I think it is possible that some of his relatives may invite themselves (they tend to do that) and it feels awkward walking past them on the way to a dinner they are not invited to...
4. How do I handle invitations? Word of mouth is not appropriate, but we are having a casual RD, so formal invitations would likely cost more than the RD itself.
5. Is it appropriate to put info/photos of the RD up on our website AFTER the wedding and reception? We do plan to put photos of the dress (I am keeping it under wraps until the wedding), the ceremony, the cake, etc up, but as the RD is small and invite only, I am inclined to think we should never put anything on the website.
Help?

Thanks.