How long it takes for a new feed to update through Feed Informer?
It seems like my feed hasn’t updated for a long time.
It varies a lot. It varies by how often the source provider lets us check (varies widely) and also by how often your digest is accessed. We do not update digests if they are not accessed, so digest requests trigger updates. This can cause slowness in ‘test’ situations where only one person is using a digest irregularly, but soon clears up once they’re in the wild.

I can’t find an option to remove the logo. Is this available?
Our current Terms do not allow logo removal. However, we have a premium membership which includes priority technical support, and we think about adding some kind of option for paid logo removal. This option will be added in the nearest future.

Pictures aren’t displaying.
You should put
%DESCRIPTION%
instead of
%DESCRIPTIONPLAIN%
for HTML tags rendering.

How to get the feed article link to open in a new window?
You should change
<a href="%URL%">%TITLE%</a> tag
for
<a href="%URL%" target="_blank">%TITLE%</a>

Is it possible to edit a flash template for its width and length? It seems I can adjust the width of the actual box, but then the content inside i.e. the feed is not fully visible and cut off on both the left and right.

Unfortunately, right now it is not possible, maybe in future we’ll get some flash editing feature.