Tomatoes diseased HELP!

There is something wrong with my tomatoes plants. At first I thought it was leaving them outside which was causing the leaves to wilt as the ones indoors seemed ok but they are all going bad now (note i moved some back in to my conservatory). the leaves are in some cases going white they take along time to fall off. The tomatoes themselves seem to still be growing although they are taking there time to ripen. A picture i expect would be best if anyone thinks they can help I could send them some pictures?? Thanks JB

And try Here.

Sorry can't work out how to download a picture/s. Can you go through it for me. Thanks for your time JB

Going white?  sounds strange, sure you aren't watering them in the sunlight and they are scorching???

Some are going white but the main are going yellow browns and even a purple colour do you know how to download a photo?

Hi some of my toms look similar so I was interested to see what replies you get, so far I have just been cutting off the worst bits (ex hairdresser so love doing this!) but it's wierd because some plants are perfectly heathly yet others situated very near goes mangy, the toms seem ok though