I have just switched from plog to wordpress. The plog2wp-importer did not work well for me, it did not import all articles. So I used the rss import.
There is still no way to import a.e. graphics and images uploaded to plog so I wrote a little php-script to make things a little bit easier with this issue. This is not a plugin and it is not an automatic importer at all, but it lowers the amount of work needed to get the resources over to wordpress significantly.
The article in german can be found here:
https://www.virtuatron.de/blog/2006/03/31/ploglifetype-resourcen-in-wordpress-importieren/
vurt