The Stardraw A/V Demo installation is completed using the Updater - you cannot run Stardraw A/V until you have completed the LiveUpdate.
So, when the Updater appears, select the Language you want to use, allow the LiveUpdate to run through, then click on Synchronize Manufacturers to build a library of symbols from your chosen manufacturers, then click on Run Stardraw A/V Now.
I hope this is helpful - please post if you have any further problems
Kind regards
Rob