On Eclipse Ganymede I see jBoss plugins available for jBoss 3.2.3, 4.0, 4.2 and 5.0, but none for EAP4.3.
I would guess the likely plugins that could be used with EAP 4.3 are 4.2, 5.0 or one that has to be downloaded (in which case I'd need the URL), but learned long ago not to assume.
Could someone let me know which is the right plugin?
Use "JBoss 4.2". Basically, EAP 4.3 is JBoss AS 4.2.1 + JBoss Seam + JBoss Messaging + various patches.
The differences in the various server options in Eclipse is where Eclipse looks for key app server files.