Just been reviewing this again trying to figure out why the...

Just been reviewing this again trying to figure out why the sales figures are low this quarter.
As I understand it, TZI contributed about $2.2m last year in sales. I think the total for TZ including PDT was around $20m so PDT accounts for the bulk of all sales albeit with slender margins. Any shortfall in PDT sales is therefore going to have a larger effect on overall profitability.
With 'record' sales in TZI, the shortfall lies with PDT as I understand it.
However, looking at the quarterly, it says in the text that PDT achieved revenue of US$5.2m for the quarter and $10.7m for the half. So why is it that in the consolidated cash-flow statement that total TZ sales for the quarter stand at A$4.6m? The difference is too large to account for exchange rates and I assume combines PDT and TZI so I'm very confused! Have I just missed something completely in terms of my initial understandings?