Irregular stored proc results giving me headaches, please help

[darkroastbeans]

Hey folks, I'm having a really weird problem -- I've written a stored procedure to give me aggregated results from a table and pair that with data from another table -- what's weird is that when I execute the proc in Toad or MySQL Query Browser, the results come out fine, but when I execute the proc in SQLyog, or from a PHP script, the results come out with some weird numbers.

 

Here is the proc - http://pastebin.com/d5e3d24ab

 

Here are the *expected* results (come back fine in Toad and MySQL Query Browser) - http://pastebin.com/d4babe393

 

Here is what I'm getting in SQLYog and my PHP script - http://pastebin.com/d4847f26a

 

Notice the 544 values -- that's what's throwing me off.  Any insight would be MOST welcome!

 

[darkroastbeans]

What makes this even more puzzling is that if I execute the query outside of the proc, with hard-coded values, it works fine.