Hi: for auto sorting of object when adding new items, you need to add this code to your Object , for example:
if Gallery has_many GalleryImages , add this code on the GalleryImages class :

function onBeforeWrite() {
parent::onBeforeWrite();
if (!$this->SortID) {
$this->SortID = $this->getNextSortID();
}
}

function getNextSortID() {
$getDataList = $this->SGallery()->Images();
if (!$getDataList || $getDataList->Count() == 0) {
return NULL;
} else {
return $getDataList->first()->SortID + 1;
}
}
PM me on the IRC if you have any questions

yep, its fixed now.. I guess I had an old copy of the module . as of 4/9/12 the module will take care of incrementing