[azubah]

the leaves on my plant are small, yellowish curled up and have purple edges. The plant is about 5ft tall and has fruit on it, but does not look well. The photo makes it look more green than it really is.

Here is another. I'm not doing at all well with these.

[Aunt Sally]

Doesn't look good does it !

I think it is getting too hot during the day and too cold at night.  Pay attention to correct feeding and watering too.

[Bernard]

Looks very similar to mine, azubah. See 'Another tomato problem'.
It is a little early to be sure but I think my problem has come to and end. The newer leaves appear to be developing ok.

[azubah]

I think I have been feeding them too much, and the temperature fluctuations do not help at all. Thanks for your replies, folks.