I work with enterobacteria every day and phage therapy was discussed on an expert meeting I went to. Phage therapy was exhumed recently but most of us see the therapeutic potential overrated particular by the mass media. That is not to say that there is no potential but there is too much evidence against a widespread use. I think we all would like to have good handle in the light of multiresistant strains.

There is no real track record of tests that were carried out in the west but as far as we know some attempts were made in early years (failures are rarely published). There are newer test in the literature carried out in the food industry and in mice.
The idea that things were "forgotten in the West" is often used to give weight to arguments but in modern research there is hardly anything left that is not written in English. There is a lot of information on the web that we should take into account, including positive arguments for phage therapy, for instance this review. 

http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db;=pubmed&dopt;=Abstract&list;_uids=16258815
 
However, even in the postive light that the review draws, one should not forget about the severe problems that need to be tackled. Note that the problems of resistance also present phage therapy, the added amount of time to find the course of the infection and the massive allergic reactions you could provoke by phage particles. 

I'll assemble some more data and will edit the article soon, more comments too.