This tutorial will assume that you have a valid SWF file developed on adobe flash.
To be able to install your SWF file on Nokia device, you will have two phases to finish
First phase: is converting the SWF file into an unsigned sis file. To do that Nokia provide online packaging service that converts SWF file to unsigned sis file, in that tool you submit your SWF files choose the main SWF file which is the starting point of your program
Second phase: is to convert that unsigned sis file to signed one with capabilities that will allow it to function well, and i have written more about that process here in my blog