Yes, quite possibly, Ink has found a link to the page shown in your log, and has indexed that page. It also tried to read your robots.txt file [robotstxt.org], but you don't have one (You might consider uploading at least a blank robots.txt to prevent the 404 errors, but you don't have to).
If you read the paid offer on the Ink site (and others), you will see that for a fee, they offer to spider and index your pages often. Though they do not emphasize it strongly, that is what the fee is for - frequency of updates, and not necessarily fee-for-inclusion.
We had another short discussion of this today in this thread [webmasterworld.com].