I archived them to pc, then deleted them all from my phone. No problems here, thought the program was great.
Now, however, i keep receiving the message 'sms memory over 95% full' (or something similar even when i have fewer than 50 messages on my phone in total - including drafts, inbox, outbox, sent items, templates... everything. Below is a screenshot of what MPE shows in 'memory':

Here it shows that MPE does not detect my SMS memory as being near-full. So it leads me to the conclusion that either:
a) My phone hasn't realised MPE has deleted all the messages i had saved
b) MPE hasnt actually deleted the files... just removed parts identifiable to the phone, leaving behind some memory consuming parts?
c) Problem with the phone, unconnected with MPE
d) your suggestions?
N.B. Note that i do not know where the sms files are actually stored on the phone... although there is plenty of room on my memory card, if it has something to do with how that is partitioned or allocated to different areas it would be nice to know
This has been bugging me for a few weeks now
Help or advice would be greatly appreciated.