Mysql-4 to mysql-5 code example help

I am currently setting up a osCommerce site.
However I am trying to run it on mysql-5 so a lot of the queries don’t work.

It would be appreciated if someone could modify this bit of code to mysql-5 standard for me so that I can see how it differs from 4x.

select count(p.products_id) as total from products_description pd,
products p left join manufacturers m on p.manufacturers_id = m.manufacturers_id,
products_to_categories p2c left join specials s on p.products_id = s.products_id 
where p.products_status = '1' and 
p.products_id = p2c.products_id and 
pd.products_id = p2c.products_id and
pd.language_id = '1' and 
p2c.categories_id = '37'

[TEP STOP]

Any pointers or tips for other problems I may face is appreciated.
Or links to any examples on converting mysql-4 to mysql-5 queries.

Thankyou.