Migration Script

I have an old blog called bloq, I want to migrate to WordPress. The database structure is different. Is there a script that will ease my migration?

I see that the wordpress db is more complex than my previous blog so the mapping will generate many orphans. I want to know if there any script available to handle this.

Current Database runs like this:
bloq_comment
bloq_config
bloq_macros
bloq_post
bloq_topic //Topic = Categories in wordpress

The most important would be the bloq_post which have the following fields:
– id
– title
– text
– time
———
– topic
– autobr
– comments
– macros
– publicated (date)

The last part is a boolean whic switches between 0 -1 if it exist or not.

Any suggestions?