Hello, I have some problems on using compass and blueprint. Before asking I want to know if there is anyone using compass with blueprint liquid here. Thank you.
@Msan: I had never heard of compass before your question. So I did a google of "rails compass", and the first article it came up with was "Using Compass with Blueprint in Rails":
http://billsaysthis.com/content/compass-blueprint-rails.php
Perhaps you'll find it useful while you are waiting for a more informed
answer! 
- ff
@msan: I use compass and blueprint, although not blueprint liquid.
This link is in regards to why the liquid layout in blueprint is still a little wonky when dealing with nested stuff.
https://groups.google.com/d/topic/blueprintcss/E43ZvPLmed8/discussion
This is the original liquid blueprint discussion.
https://groups.google.com/d/topic/blueprintcss/nn-guxn6m_A/discussion
-huy