Script to identify a user and display a welcome?

Hi there, I’m looking for a script or a plugin that will allow me to display a welcome message to a visitor to my blog

“welcome _name here_”

Ive come across alex kings “since last visited” plugin but am wondering if that would work fine if I could just figure out how to add the bit that displays their name with a welcome message, having the comments and posts since their last visit is excellent as well.

I’m wondering if that plugin is compatable with strayhorn, and if there are other alternatives I could use?

thanks