Photo from Dispatch Online's preview of Melissa. There's also a tiny photo at iafrica.com.
If you're hungry for some text though, check out this episode guide from Action TV. Note that there are spoilers galore. The main body outlines each episode with some critics' reviews (be warned, the Times one is very negative), while the sidebar on the right recaps the impact of the series:
An undeniable success which, whilst drawing its detractors, was also greatly appreciated by contemporary audiences, Melissa was the longest version of the tale, the most luxuriant and the best testament to the powers of Durbridge as a thriller writer (viewed as a celebration of the man, his work, and the thriller genre as a whole).
And on Ms Ehle in the title role written particularly for her:
Jennifer Ehle's performance as Melissa Foster (nee Mackenzie) was the brightest star in the series, as she reinstated the mystery and allure that Durbridge had always implied in his two previous variations on the theme.
There's a comprehensive bunch of reviews at the fansite.