Got the installer working. Fixed a few bugs including a nasty-to-debug issue where the lang_id was being hardcoded during installation, resulting in strings being inserted with the wrong lang_id causing an infinfinite loop with fetch() throwing a "no strings" error and using template (which calls fetch()) to complain

#frmbody {
	padding: 10px;
	background-color: #FFF;
	border: 1px solid #CCC;
}

.frmRow {
	margin-bottom: 10px;
}

#templatesrc {
	border: none;
	width: 320px;
	height: 240px;
}

.title {
	padding-bottom: 5px;
}

.mceActionPanel {
	padding-top: 5px;
}