My daughter said that sygate firewall said "there are new updates available" for her free version (which she downloaded) and now it says she has 30 days left of her free trial are norton trying to upgrade all the sygate customers?
Yes, they've discontinued the sygate free stuff and are trying to get you to use Norton products:
The Sygate page now says:
Important Notice: Effective November 30th, 2005 all Sygate personal firewall products will be discontinued. This does not affect Sygate's Enterprise firewall and endpoint compliance products, which will still be updated and supported.
I used to use it, but because of this ditched it and am now using the free Zonealarm, which is fine. I recommend you try it.