Make it the same colour as the forgehub dark, or just transparent. It works on one of my computers but not the other for some reason, does it look transparent to you?
I would suggest opening up a new document with transparent background, the same size pixels as that signature, then you will have to erase all the grey part, you may be able to magic lasso some of it. Sorry there isn't any easier way :/
Where are you uploading it too? And make sure when saving not to flatten the image, but to merge visible layers.
Try photobucket, I know they allow for transparent backgrounds that's where my current signature is from and as you see the transparency works perfectly.
No it will work anywhere if you.. save as a .png upload to photobucket then paste it in with IMG tags.
yeah, for the new image, I think there should be some sort of border or something where the picture is being cut off, from here it looks awkward.