[MarkFL]

I suspect you are interested in making them all the same width, but would rather preserve the aspect ratio. If that's the case then...

Create a new plugin as follows:

Product: vBulletin

Hook Location: showthread_complete

Title: Set Avatar Size

Execution Order: 5

Plugin PHP Code:

PHP Code:

$headinclude .= '<style type="text/css">.alt2 a img {width: 100px; height: auto;}</style>'; 


Plugin is Active: Yes

Click "Save."