Hi Fiona.
Your case reference is 00362950 should you need to contact us directly regarding this issue.
The file you have downloaded is the ActivInspire resource pack, to download the correct file, please click here and download the ActivInspire software application.
Once you have installed ActivInspire, you can import your current .as4a file by clicking on File > Import > Resource Pack To My Resources and this will give you lots of extra resources to use in your flipcharts.
I hope this information helps.
Adam
Promethean Technical Support