Picpress Markdown OR Textile = Problems

Hi

I just got Picpress on my blog running, but there is a problem when I have Textile or Markdown running in paralell. Picpress adds the thumbnails and everything works, but the comments it adds to the post like for example :

<!–pp-thumb-start–><!–PictPress generated thumbnails for dir /var/www/html/wp-content/2005/04/image-gallery-test2–>

can be seen in the post, and is not contained only in the html sourcecode.

I suspect the way textile and markdown process the user input, they somehow convert the html comments.
I worked around it by switching markdown or textile of, but would like to be able to use them again , also when making picpress posts.

Can anyone help me ?