Are you looking for a specific SAPscript form in transaction SE71 (SAPscript Form Painter)? Then the probability of finding the desired form is extremely low, because SAP has implemented the search more than poorly.
The report RSTXFCAT, which can be called using transaction SE38 / SA38, can help. This report makes it very easy to search for SAPscript forms. The report uses the SAP tables STXH and STXL.