This is not actually asking for support but a sign of appreciation of how well this database works even in dire straits. 1st I couldn't make a backup then slowly my PVD started to get corrupted more and more until I couldn't load the data anymore, more than 18 months of scrutinized work down the drain (more than 3,000 entries)...So I started to research the if and how things. There are few posts in here that point to a set of Firebird tools but as a complete noob I soon realized there was quite a bit of work for me to do. This page was very helpful:
http://www.ibphoenix.com/resources/documents/search/doc_5After meticulously following its instruction my PVD is now complete and healthy again and I just came back from being over the moon to share this. So all in all, if your PVD gets hopelessly corrupted, men forbid, have no fear, if I can fix it, you most certainly can as well.