I can resize it for you, but to fit within the sizes allowed for the forum, it is going to be very small. Siggy size is a maximum of 5" wide and 2" tall. Based on the size of the graphic you made, yours will end up being only 3" X 2". If you want to rework something to be wider and less tall, then I'll be happy to resize it to fit the standard
Here's your current one:
If you want to use it, right click it and "save image as" to save it to your computer. Then you can upload to photobucket and copy the IMG code and paste it in your signature box.