Hi Toni
Unfortunately very few of these affidavits have survived - if they have, it is usually in the Parish Chest or amongst the Overseers of the Poor papers.
An alternative was a 'naked burial' for those who could not afford wool, or a fine.
The Acts were only repealed in 1814, but in some places like Manchester, the Parish Clerks in 1678 purchased a separate Register to record the affidavits. The series was continued upto 1795, though the affidavits cease to be recorded in the latter two volumes of the series, and it would appear that these registers had by then become the main paper original register of burials.
Unfortunately, I have not come across any in the East Sussex Record Office.
Chris in 1066