RPG for the Web - A Beginner's problem

Hello guys!

I am starting to practice this concept and here is my first "rookie" problem.  I
just want to enter a part number(15 characters long) as a parameter to an HTML
page and display the description and other general information.

My API to pull the string looks like this:
 *
 * QtmhGetEnv
 * API that the program will use to retrieve the query string
DGetEnvData       PR                  ExtProc('QtmhGetEnv')
D  Data                               Like(EnvData)
D  AvailLen                     10I 0 Const
D  ReturnedLen                  10I 0
D  EnvName                      30A   Const
D  EnvNameLen                   10I 0 Const
D  Error                              Like(APIError)

... and in my calculations:
C                   CallP     GetEnvData(EnvData : %Len(EnvData) :
C                             EnvDataLen : QueryString :
C                             %Len(QueryString) : APIError )

However, when I enter a valid part number (let's say 1303022) my results on the
page are blank and check the API variables:

EnvData:ITEM=13030200
EnvDataLen:12
QueryString:QUERY_STRING
APIError:?
Resulting Item Number:3030200

As you see, the first character (1) is gone and there is an extra zero at the
end,
when the real item is 1303022 (parameter that you still see on the address bar
on the browser.  Due to the fact that this item is not in database, the page is
blank.

I do not know if I have provided enough information but I hope somebody is able
to throw some light here.

TIA

Peter Vidal
Programmer Analyst
PALL Aeropower Corp.