Can't install extension for DW CS4

I actually already bought the software then downloaded the trial (I assume that's what I need to do).

But the damn thing says it needs DW MX or higher!! I'm using DW CS4.

What gives? Is there another download I can try? There are no download links in my purchase receipts............

I'm using an Intel Mac btw

Hi,

We have sent an another version in email, please confirm that you have got it and work with CS4.
We use it with CS4 as well, so should work.