The Managing of a Grape Vine  

My wife & I bought a small cottage,in the Limousin region of France in the department known as the Correze in the village of Treignac, this time last year.
The cottage has an old vine on the property & when we took possession of the cottage in August last year there were grapes on the vine but because the vine had not been pruned for some years the grapes were very very small in fact the size of small pearls.
A previous owner of the house, who lived next door, at a ripe old age of 92 years explained that the grapes that had been reaped from the vine in years gone by were excellent. However we never got to discuss the vine further with her before she died a few months later.
We know absolutely nothing about Grape Vines whatsoever and would appreciate any advice on the management of vines/pruning etc.
The old lady did express however, that the vine needed pruning and before last winter we pruned the vine right back as far as we dare.
Now the vine has come back to life and there are tubers everywhere and heavy leaf, but no sign of any grapes.
Can anyone assist with informat ion on what we should do.
Thank you

John E.Bell
32 La Basse Vigne.
19260 TREIGNAC.
Correze.
France

Tel: ++33(0)555 971 959
e-mail: chezbell@aliceadsl.fr