When putting Garmin maps onto the blog, use the “HTML” tab to paste the embed code into not the “VISUAL” tab when you are logged in.
I have added <center></center> html tabs either side of the embed code to centre the image in the space. I have assigned the post with the category “Garmin”, and tagged it “Trevor” to make it searchable (If I posted a Garmin ride of my own I would use the same category (Garmin), but a different tag (Steve) – then if you entered “Garmin” into the search box (first column, under the logo), it would return all the Garmin rides (Trevor’s and mine) but if you entered “Trevor” into the search box it would juts return his rides.
I hope this makes sense, if you need more info then please contact me.
Steve