Exactly what do you have for the file path for icon1.gif? And, exactly what do you have for the file path for icon2.gif? Do you have any Replacement Variables for your style? Does it work correctly for a totally default vbulletin style:
How to create a totally default style:
- Styles & Templates > Style Manager > Add New Style
- Parent Style: No Parent Style
- Title: Default vBulletin
- Allow User Selection: Yes
- Save