The bookmarklet in iPad should place the item in your Zotero.org library. If that is not what you are getting, please provide more details. Do you have a Zotero.org account? What references do not work (the exact url)? What steps did you take in your attempt to upload your item? Are you certain that you correctly set-up the bookmarklet connection on your iPad as a bookmarked link?
I use the iPad bookmarklet frequently. My only problem is that the items go to my large library (not to a collection) and I must resort the library to find the recently added items. But that is a different issue.
Not all sites work with the bookmarklet. In those cases there isn't anything you can do as of now. If the site works in Firefox but not the bookmarklet we're generally aware of it, so no need to report.
The list of supported sites is growing but it's possible we might not be able to get this one to work.
I use the iPad bookmarklet frequently. My only problem is that the items go to my large library (not to a collection) and I must resort the library to find the recently added items. But that is a different issue.
The Bookmarklet works with other sites on the iPad I use. And the site I mention above works with Zotero Firefox.
The list of supported sites is growing but it's possible we might not be able to get this one to work.