FLV-Embed

[flv:video.flv 427 240]

как указать путь до картинки?

Simple FLV Plugin

The Simple FLV plugin allows one to easily insert FLV videos into WordPress blogs using the extended universal FLV tag style:

[flv:url image width height link player]

where:

• url – URL of the FLV video file you want to embed;
  
• image – URL of a preview image (shown in display and playlist);
  
• width – width of an FLV video (default: 400);
  
• height – height of an FLV video (default: 320);
  
• link – URL to an external page the display, controlbar and playlist can link to (default: #);
  
• player – URL to FLV player (default: http://yourblog.com/wp-content/SimpleFLV/flwplayer.swf).
  

Пример:

[flv:http://www.dvdxbase.com/flv/nubileones/0023/video.flv http://www.dvdxbase.com/flv/nubileones/0023/scr1.jpg 400 300 http://www.nubileones.com/wm252/index.html]

Не только с картинкой, но даже и с рефкодом

спасиба