SQL joins ;P problems

I would like to select all medicines some have the 'MMAP' property and some dont. If a medicine has the MMAP property then the medicines product code will apear in the MMAP table.

there are also other properties like MMAP which the medicine may have but located in different tables....

my current statement brings up nothing...

rsProductList.Open "SELECT med.[Product Name] & ' ' & med.
[Presentation Code] & ' ' & med.Dosage & ' ' & med.[Dosage
Description] & ' ' & med.Volume & ' ' & med.[Volume Description] AS ProductInfo, med.[Nappi Code - First Six Digits] & med.[Nappi
Suffix - Last Three Digits] AS NappiCode, man.[Manufacturer
Name], med.*, mmap.[MMAP pack price exl vat] FROM MED007
med LEFT JOIN Mma007 mmap ON mmap.[Medprax product code] = med.[Unique Medprax Product Code], Mnf002 man WHERE med.
[Manufacturer Code] = man.[Manufacturer Code] ORDER BY med.
[Product Name]", gconnMedAidBrowser, adOpenKeyset,
adLockOptimistic

is there a problem with my join.

i havent really done joins before.

in the end i would like a list of all the medicines and for each the MMAP column may or may not contain a value

i used ms access to create a query and used my query

it went like this

SELECT DISTINCT MED007.[Unique Medprax Product Code],
MED007.*, MED007.[Product Name] & ' ' & MED007.[Presentation Code] & ' ' & MED007.Dosage & ' ' & MED007.[Dosage Description]
& ' ' & MED007.Volume & ' ' & MED007.[Volume Description] AS
ProductInfo, MED007.[Nappi Code - First Six Digits] & MED007.
[Nappi Suffix - Last Three Digits] AS NappiCode, MNF002.
[Manufacturer Name], MMA007.[MMAP pack price exl vat], EXC002.
[Exclusion code], MPL007.[MPL pack price ex vat]
FROM (((MED007 LEFT JOIN MNF002 ON MED007.[Manufacturer
Code] = MNF002.[Manufacturer Code]) LEFT JOIN MMA007 ON
MED007.[Unique Medprax Product Code] = MMA007.[Medprax product code]) LEFT JOIN EXC002 ON MED007.[Unique Medprax
Product Code] = EXC002.[Medprax product code]) LEFT JOIN
MPL007 ON MED007.[Unique Medprax Product Code] = MPL007.
[Medprax product code];