Query Problem: From Sybase ASA To SQLServer 2005

Hi,

I'm doing a migration from Sybase SQL Anywhere to SQL Server 2005.
This is one of the query that doesn't work:



select card_nr as cCard,

card_type as cType,

tab_cards_profile.profile_name as cProfile_name,

dbo.fn_name_pdcode( cCard, cType, tab_history.system_code ) as cCard_name,

dbo.fn_card_date_entry(cExit, cCard, cType, tab_history.system_code ) as cEntry,

evn_date+evn_time as cExit,

tab_history.profile_id,

payment_type,

dbo.fn_name_pdcode( param1, payment_type, tab_history.system_code ) as cPay_name,

param1,

datediff(minute, cEntry, cExit) as durata,

amount

from tab_history

LEFT OUTER JOIN tab_cards_profile ON ( tab_history.profile_id = tab_cards_profile.profile_id AND tab_history.card_type = tab_cards_profile.profile_type)

LEFT OUTER JOIN tab_personal_data ON tab_personal_data.name = cCard_name


Both the functions called

dbo.fn_name_pdcode( cCard, cType, tab_history.system_code ) as cCard_name,


dbo.fn_card_date_entry(cExit, cCard, cType, tab_history.system_code ) as cEntry


seems that can't work if I use as parameters alias of columns... This could be a problem; in sybase ASA that query can be executed.
there is any work around to help this query runs?

Thaks..

Luca