SYTL, have you put your Hubs in Groups? If you have done so, and if they are ordered in a logical way within the group, then the titles of the preceding and the succeeding Hub should appear as active links at the bottom of a Hub that is within the same group.
If you haven't grouped them yet, you can do so by clicking on Groups in the menu on the left side of your "My Account" page and then following the fairly intuitive process from that point on. I have written a Hub about how to link one's own Hubs on Hubpages, if you need more specific details. Right now, it is still a featured Hub.
I will add, during the past six weeks or so I have not been highly active on HP and I may not be up to speed on what happens with links to Idled hubs (in case any of my answer here makes little or no sense).
Adding to what RTalloni has said, you could also send your friend(s) a link to the specific Hub(s) they can't find. If a lot of traffic starts showing up for an Idled Hub, it is supposed to become featured again - in time (but I'm not sure how much time or traffic is needed).