My iPhone email client is completely broken. Please please please help! :)

Hello,

I'm basically a noob. I was messing around with some applications I've put in my iPhone through the installer 3.0 app. I used the "send song" through email application but the phone got blocked in the middle of sending a song through email. Ive reseted it using the home button and standby button. Now everytime i try to access my email the phone gets completely stuck. I cant do anything but reset it.
Ive tried to reset it lots of times, sync it with the pc, delete all my mail accounts, add new mail accounts, but nothing works.
Please, please help me! I'm sorry if theres another thread about this, if so could you please send me the link to it.

Any help will be greately appreciated. Thanks! :)

Have you tried to restore it through iTunes? Should fix it up

Ive tried syncing it with iTunes to fix it but I dont know how you can actually restore the email app from it. Ive also tried syncing it using the "overwrite information on the iPhone on only this sync feature" for the email accounts but it didnt work.
Please please help me! :)

stupid me, i understand now what you meant...using the "Restore" button when the iPhone is synched. I thought there was a special way to restore the mail app. But tell me...if i use restore on my unlocked iphone...wil it get bricked?
i will greately appreciate a reply so pls help me ^.^

PS: Ive tried using restore but if forces me to have the 1.1.1 update installed. I have a 1.0.2 unlocked iphone so this would brick it. Is there any way I can restore it without updating it?