Paginator Not Found when page number specified - cakephp

Question

I manually set the CakePHP Pagination values in my Usergals Controller like so, so as to Paginate a related Model (TreasuresUsergal) on the view of Usergal. Here is a simplified snippet from the UsergalController:
public function view($id = null) {
$this->loadModel('TreasuresUsergal');
$options['joins'] = array(
array('table' => 'treasures',
'alias' => 'Treasure2',
'type' => 'LEFT',
'conditions' => array(
'Treasure2.id = TreasuresUsergal.treasure_id',
)
)
);
$options['conditions']=array('TreasuresUsergal.usergal_id'=>$id);
$options['fields']=array('Treasure2.*','TreasuresUsergal.ord','TreasuresUsergal.comments');
$options['order']=array('TreasuresUsergal.ord'=>'asc');
$options['limit']=$limit;
$this->Paginator->settings = $options;
$treasures=$this->Paginator->paginate('TreasuresUsergal');
$this->set('treasures',$treasures);
}
So in the above example, $id is the value passed to the view function from the URL. There is a live example of this here:
http://collections.centerofthewest.org/usergals/view/20
As you can see, it works just fine for a single page. However, today I tested the Paginator in the view and discovered the "next" button does not work. The Counter, sorting, and Page numbers all load correctly - but anytime the actual named parameter "page:n" is passed (when n is greater than 1) I get a Not Found page with the following error:
Not Found
Error: The requested address '/usergals/view/20/page:2?url=%2Fusergals%2Fview%2F20' was not found on this server.
I must be missing something simple - I have experimented with the routes a little, but haven't been able to figure it out. Or perhaps I am missing some Paginator options? Or does it think its OutOfBounds when its not?
UPDATE / WORKAROUND
After some messing around, I have devised this workaround. Not as nice as I'd like, but here is the basic idea (error handling, etc can be added)
First, I added a check in beforeFilter to see if page paramter was set. If so, I change it to 'p' parameter and redirect.
I did this here because otherwise I had problems with the Not Found exception (see notes at bottom). So, in beforeFilter:
if (isset($this->params['named']['page'])){
$newurl=$this->params['named'];
$pg=$newurl['page'];
unset($newurl['page']);
$newurl['p']=$pg;
$this->redirect(array('action' => 'view/'.$this->params['pass'][0])+$newurl);
}
Then, in the 'view' function of the same controller, I added this along with the other Paginator options:
if (isset($this->params['named']['p'])) $options['page']=$this->params['named']['p'];
With this, the standard Paginator behavior seems to work fine in the view. Prev, next, etc.
If anyone has a better suggestion, I would love to hear it. I don't like the idea of having to redirect, but it works for now.
It's worth noting that adding this code (even just to experiment) - caused all of my pagination counts to stop working. The query in debug was correct, but the displayed counts were wrong:
try {
$this->Paginator->paginate();
} catch (NotFoundException $e) {
}