Release 0.2.0 is available at the usual place
. The major change is to switch to using calibre database IDs instead of text for cover and format fetching (along with associated security and performance changes), which is the reason for the change from V0.1 to V0.2.
One note: while testing I discovered that memory used by the PHP function used to resize cover images can explode, sometimes exceeding server limits. If some covers aren't showing, then check the size of the cover image. Experimentation indicates that cover images less than 1000 x 1000 pixels seldom (if ever) exhibit this problem.