sponsor text on photos

[seanCLT]

I'm new to this, but I've had my first 3 freesites accepted at the majority of the sites I've submitted to.
I noticed that on the submission page at http://www.adult-sex-sites.net, there's a warning against having pictures with text on them. I haven't had a problem with most other lists, but I'm wondering if this is why I haven't been listed on Adult Sex Sites.

Do they mean that no text at all is allowed?
I've been using Fetish Hits for most of my content, but it seems like almost all their free content has small text on the bottom of the pictures.

Here's an example of what I'm talking about:
http://www.davespornplace.com/bbw/fa.../gallery1.html