Have you tried ITV's version that uses Silverlight?
That's appalling !!! You can't skip to a point in the programme properly - they stuff ads in , badly, forcing you to watch them , several times if the stupid thing crashes (which it will ).
Caching is terrible, there's no resume function if you leave the programme.
Quite franky the BBC version (flash) is so far superiour to ITV's poor effort -I'm happy to put up with the slight clunkiness of the download option . 4od is OK , the online watching is a bit hit and miss as it tends to freeze a bit - but the horrid thing is you have to log in , it just feels a bit , well, cheesy for some reason.