Polly,

You seem to be looking at times where there is some visibility. I haven't had such luck. The orange blob is more defined now, the blurry area smaller, but nothing helpful regarding the top of the mountain behind it. I did find this activity report:

Growth of the new lava dome inside the crater of Mount St. Helens continues, accompanied by low rates of seismicity, low emissions of steam and volcanic gases, and minor production of ash. During such eruptions, changes in the level of activity can occur over days to months. The eruption could intensify suddenly or with little warning and produce explosions that cause hazardous conditions within several miles of the crater and farther downwind. Small lahars could suddenly descend the Toutle River if triggered by heavy rain or by interaction of hot rocks with snow and ice. These lahars pose a negligible hazard below the Sediment Retention Structure (SRS) but could pose a hazard along the river channel upstream.

Different type of "SRS" there!

And the chart with the most recent seismic activity can be found here to show a heating up of conditions. Unfortunately, that only shows until early August. There is obviously some lag time in filing and posting these monthly reports. If you poke around you can find some static photos taken in September. See if this works to give you more information.

SRS