You need to hit up the "Pronto Script (More)" link which is located in the top right corner of the page at www.pronto.philips.com. Once hitting up this link you'll be asked to login. Once logged in hit up the downloads link on the left side of the page. Once there hit up the links on the right side of the page for each of the Pronto Script Modules which are available. I just did so myself and didn't have any problems.

Another thought on this...
Are you Pronto Level 1 certified? Being level 1 certified may be required to access the downloads. Can't say for sure, but I'm level 1 certified and haven't had any problems. If you're not level 1 certified you'll need to take the level 1 online test found under the Professionals/Certificates section of the site.