Further to post 666

Am I correct in thinking that each time I run the froogle generator, the froogle.txt file is overwritten
I get the following shown

Google-Froogle Data Feeder started 2007/12/06 10:19:33
Feed file - /www/hosts/*******/mainzone.co.uk/feed/froogle.txt
Processing: Feed - Yes, Upload - No
Froogle File Complete In 9.942317 Seconds 4242 Records

But when I view the results and save the file I can see that the contents do not reflect the latest pricing information on the website.

My feed folder holds 3 files
froogle.csv 2bytes
index.html 111bytes
froogle.txt 3438541bytes

This problem has only recently occurred and previous 5 months worked correctly.
Any assistance gratefully accepted.