connection issues etc. etc. etc.

hello i just received an 8gb ipod touch for christmas. i downloaded itunes to my computer. i plugged in and synced (or so it said) but nothing that i had downloaded onto the itunes site went to my device even though the site said everything was good. Also, my device recognizes the wi-fi in my house but when i try to connect to mail it says connection to the server cannot be found. when i try to connect to itunes or app store it says cannot connect to itunes invalid argument. When i try safari it just keeps spooling. All of this worked when i tried the wi-fi connection at church. the only thing that still wont connect anywhere is you tube. I did notice that the ip address listed on my device for my wi-fi was different from he ip address listed on my computer but i don't know how to change it on my device. could it be because i am running a pc versus a mac? Im not sure what the issues are here but thought id try this site before i put on my "im an idiot" face and tried the different stores.

 

ok apparently i write too much cuz no one is helping

i need some ideas as to why my ipod touch recognizes my wi-fi but nothing will actually sync from my computer to my device as well as possible ways to fix this issue.

 

still no connection

ok i reverted my ipod touch to its factory defaults and the syncing is working now but it still cant pick up my wi-fi connection so i cant use email, maps, safari, etc. I think it might have to do with the fact that the ip address of the wi-fi it is finding is different from the ip address showing up on my computer. not sure how the numbers changed because the name of the wi-fi connection is the same.