1) Post the picture/animated gif to your freespace account eg: www.network54.com and set a link to it in your profile. It's been generally agreed to keep sig pics about 10k
2)Any decent graphics editing program will do, even mspaint can be used. For blank templates search the downloads on this site, there is even a set of ads/logos available. If they're not on this site someone will have them and fwd them I'm sure. To insert your new liveries use gp3edit or Jamtool2000. Have fun
[
www.mediafire.com] Some say you should click it, you know you want to.
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www.gp4central.com] <----GP4 Central