Change "send to imce" to "insert image"

Getting IMCE -- IMCE Bridge -- TinyMCE -- and the File Browser module going has been key to selling Drupal to a client who wants to see Joomla-like functionality in the way files are presented. I'm *almost* to what they want, but I am dying to change the "send to tinymce" button to "insert image" or just "insert." I can't seem to find the file that contains that language. Can anyone clue me in?

I'd also like to make a very small feature request that this language be changed in the module. From a usability standpoint "send to tinymce" doesn't mean anything to the majority of users who are looking for an insert image button. Most users don't know what tinymce is, or that what they are doing is trying to send an image there. They just know that they want to insert an image in their post. It would be even better if the admin could customize what the button says, but that's not such a big deal.

...I also get why this can be controlled by the theme, but it might be good if "out of the box" that tab came styled with a border to make it stand out more like a button.

Apologies if this is coming from somewhere outside of IMCE, let me know where and I'll post this in the appropriate project.