iPod touch i have a dissable ipod touch 1gen please help me!!

i have a disable ipodtouch and my laptop where my itunes where save in is already a crap.
what i did i plug my ipod to my brothers laptop who have also an itunes application same generation of ipodtouch we have but differ in memory.
.everytime i plug it to my brothers laptop it doesnt recognise.
.even a pop a message nothing appear.
.but i works on my brother ipod on here laptop.
.please help me.
.dont know what to do.

.im a lil bit aware of the DFU watch several times it in youtube.
.bout the itunes its the latest one.
.and the software is till the orignal one.
.it appears on my ipodtouch screen is this " ipod is disabled: connect to itunes"
.but the itunes seems doesnt recognise my ipod.
.what should i do?
.please help me.
.thanks much.