We've added a new page (under the 'Home' tab) which allows you to search for memory verses. It only searches bible verses that have already been entered in Memverse by another user so if you don't find a verse you're looking for it's probably because it hasn't yet been entered. If you would like to restrict the search results to a single translation, just add your bible translation. For instance, search for "In the beginning NIV" and the search will return only NIV versions of Genesis 1 (plus a whole host of other verses that include the word 'beginning').
This is also a quick way to add verses if you can already remember a fragment of the verse you're looking for.