www.logoserver.com has an old Seattle Pilots logo posted there.
Select "MLB-AL" and scroll down to Seattle's logos.
You will probably have to change the picture size to
150 x 150 pixels. Sorry, I'm computerly and graphically illiterate.
Can't help you technically.
Most of the logos on my thread have been sized correctly.
I do know you can check the size by right clicking on the logo and then left click on properties.