Hi Julie,
Rogerbot isn't as big as other bots so it takes him a little while to get about. did you make sure you gave him enough time?
Now if you really need to you can also try other sites like Majestic SEO & ahrefs to find links but again they will also need a bit of time (though i tend to find them a bit faster than OSE). Other things to remember is the more you links to a page the easier it is for it to be crawled so if you don't have any links on it it can take a bit longer too.
Hope that helps.