HTPC and PVR the home for MegaEPG

I recently started using MegaEPG, and I love it! It works really well and adds a full guide to the channels I'm interested in.
I have noticed a problem though.
I'm using Windows XP SP2 + MCE 2005
I have my clock set to auto-synchronize with Microsoft servers, and the DST setting is set to "Automatic", so it knows that the clock needs to be advanced by an hour.
When I used megaepg.exe with the DST set to "On", it created a guide which was late by one hour.
I had to set DST to off, rerun megaepg.exe (it used the cache) and it created a proper guide, without an offset.

I'm guessing that this could be a bug in the program, or am I doing something wrong?
I simply prefer to use the auto-synch feature so my clock is always accurate, and it only works well if DST is set to "On".

I also have another question which is a bit off topic. How can I change the settings for when Media Center updates its guide? Like the time of day that it tries to update?

Thanks