Start Adobe Flash Professional. Select "File>New" from the main menu bar. Select "General" tab on the dialog box. Then select "Flash Slide Presentation" from the list presented.
Select "Window>Workspace>Developer"
Open your PowerPoint file where your slide show resides. Select "File>Save As" Choose "gif" or "jpeg" from the "file type" list box. Select OK.
Select "File>Import"Import to Stage" from the main menu. Use the file directory dialog box to browse for the location of your gif or jpeg files. Select the first image file and press OK. Select the "+" icon from the Flash slide show editor. Import the next slide into that slide. Continue in this manner until all of the slides have been imported.
Select the image on the screen. Press the selection tool and then position the cursor over the image and click the mouse. Select "Window>Behavior." Select the "+" icon on the "Behaviors" dialog box that appears. Select "Next slide" from the "actions" list. Select "On press" from the "event list." Repeat the process for the remaining images that you have imported.
Select "Control>Test movie." On the slide that appears, position your cursor over the image and click the mouse. Check to see that the slide show advances to the next slide. Repeat for all the slides for which you've assigned behaviors.