a) Add "Latest version of SinobiCharts is: x.y.z" message at near the top of the developer page. Maybe right under "Welcome to Shinobi Developer. The latest versions are... Charts: x.y.z, Grids: x'.y'.z', Essentials: x".y".z" or something similar. The actual text/placement is less important than that it exist at all. I'm sure your web-design person has a good eye for this stuff, and I trust tha they can make it nice.
b) Put a DOWNLOAD LATEST VERSION link prominantly either on the main page (http://www.shinobicontrols.com) or on the developer page (http://www.shinobicontrols.com/shinobideveloper/) From my POV, best would be on the dev page, right up top, along side "Charts Grids Essentials Suite".
Not as good for me (more steps to click), but I could see why you might want to do it this way: on the "30 DAY FREE TRIAL" page, add link for "I already have my trial, just want to re-download the latest."
I don't know, but I'm assuming that, once we get a full license and can login to the CUSTOMER PORTAL, there is a "DOWNLOAD LATEST VERSION (x.y.z)" link somewhere easy to find. If not, it should be there, of course.
The reason all this matters is because, as someone new to Shinobi, I spend a fair bit of time looking through the forums for answers to n00b questions. A lot of the answers contain a part that says "make sure that you have the latest version of Shinobi[charts] installed..." Currently, the only way I can check my version is to look at the Version.txt that came with my download, but there's no obvious way to either find out if that's still the latest or to download again to make sure I have the latest.
(If such things exist and I'm just not seeing them, then that's a problem, too. To a developer, "What's the latest version" and "where do I go to dowload the latest version" are VERY common items!)