Find and using a flexible element in a table using Selenium IDE

Hey guys,

I'm having a problem in work, trying do this in Selenium IDE:

I need select a element in a list, but for this, I need identify it before. But there is some complications:

1) The table contains a lot of rows with differents products and this products receives an ID at the moment they are created, for example: if the classification is by creation order, the first element will receive an ID: xxxx-01-yyy, the second xxxx-02-yyy, etc... But this can change if the classification mode changes too. This row that represent a product contains lots of fields, and each field has a different ID too, having by commom the number of the position in the table.
2)The box that I need to click to select my element it is like a check box at the left side os the field with the name.

Anyone has an idea of how to do this?

HI