update iplayer on dsi 1.4.1

it says on their website that the iplayer will auto-detect the update file for 1.4.1 and run it. But I put it on my 1.4.1 dsi and I get an error, do I need to run this on a ds lite?

And btw I am just curious, I got the chinise box of the iPlayer but I got the English/Chinese manual, and the iplayer has English on it. That does mean my iPlayer is English right?