hi need help with my almera tino 2001

[del.jen]

hi everyone just brought the tino privately 2 days ago. everything was going fine untill this morning my mrs got up to go to work and the battery was flat not even enough to see lights on dash.so charged battery now car just spins wont start think it may have something to do with the imobilzer but not sure cant seem to find anywhere that you can re program the key to the ecu or imobilzer as we havent got a key with buttons on. just a key with the red bit in it.any help would be great thankyou for reading.