I can't download the latest version of iTunes.

I am unable to download the latest version of iTunes.

I have tried unblocking cookies but it continues to skip straight to the 'thank you' page even though there has been no download.

I can't update anything through software update as all files stop after a few minutes saying they are corrupted, which I presume is due to my satellite router software.

I have no problem downloading large email attachements so it isn't the satellite broadband connection.

Any ideas? Thanks.