Sorry to hear about your mishap.
There's nothing anybody here can do.
You will definitely need a new motherboard, and possibly a new keyboard as well.
Other parts such as CD-drive may also have been damaged.
The T30 being so old, it's not worth it to repair.
Look for a used more modern machine, such as an IBM T60, and keep your daughter away from it.
You being in Ireland, you may want to check the computer section of http://www.adverts.ie
Saw a nice T61 in Limerick for €300.-: http://www.adverts.ie/laptops/ibm-think ... oth/451476