WiFi Problem

[vannaus]

Hi all, i hopw you will have an answer becouse i don't know what to do. I just bought an iphone 1.1.3, i hacked by ziphone and the wifi worked well for 2 days, then when i don't put the sim card the iphone find the wifi network, but when i try to connect with the sim inside the iphone it freeze himself. After the reboot the iphone can't find any wifi network but i can use it as cellphone. Anyone have an idea? Please let me know becouse i don't really know what to do.

[Flipside]

I'm having a few probs with connecting to new WiFi networks. I connect to my home network fine, but connecting to public networks is a different story. These other networks are not password protected and I do get the WiFi icon on my phone to show that I am connected, but when I try running Safari, or updating email or weather, I get an error.

Any ideas?