Hello Adrienne,
The Presentments are only available at the Manx Museum.
Contact the Manx Museum Librarian to ask the details for a search, the e-mail address is on the Manx Museum webpage..
I am not sure what year they stopped at.
There was mention of them being indexed, but I haven't heard anything more about that.
You would have to contact the Manx Museum or a researcher, to find the Presentment you want, a very tedious search, I have been told.

Have you looked at the Parish Baptisms Register, sometimes the Father's name is noted by the Vicar, I was lucky in 1853 as it was noted.

A Manx Notebook has some Presentments listed, type in Presentments on the search facility.

I wish you every success,
Averil