Порядок установки следующий:
1) запускаю файл sapinst
2) выбираю SAP ERP 2004 SR1 -> ABAP System -> MS SQL Server -> Non-Unicode -> Database Instance Installation

3) ABAP System > SAP System Identification
SAP System ID (SAPSID): TTD

4) ABAP System > Database
Standart Installation

5) ABAP System > Central Installation
SAP System ID (SAPSID): TTD
Instance Number: 00
Instance host: stt-16

6) ABAP System > Instance host
Instance RAM [MB]: 1796
Local Installation

7) ABAP System > Instances Directories
No preparation for other OS platforms

MS SQL Server > Database Connection Information
Database Instance: stt-16

9) MS SQL Server > Database Information
Note that a new database will be created

10) ABAP System > Password for user stt-16\ttdadm
******
******

11) ABAP System > Password for user stt-16\SAPServiceTTD
******
******

12) SAPInstDVD/CD Browser > Software Package Request
указываем путь до диска

13) MS SQL Server > Configuring Database Files
указываю папку SAP_DATA и SAP_LOG

14) MS SQL Server > Tempdb Configuration
стандартный путь

15) ABAP System > Load Import
Load Strategy: Load by Data File Size (Largest First)
Database Code Page: 1100
Number of Parallel Jobs: 3

После этого появляется ошибка

Copying file C:/ECC 5.0/Master/IM01_NT_I386/SAPINST/NT/COMMON/MSS/SQL/usrstd.sql to: C:/Program Files/sapinst_instdir/ECC04SR1/WEBAS_ABAP_MSS_NUC/DB.
INFO 2008-01-17 07:34:27
Copying file C:/ECC 5.0/Master/IM01_NT_I386/SAPINST/NT/COMMON/MSS/SQL/usrstd.sql to: C:/Program Files/sapinst_instdir/ECC04SR1/WEBAS_ABAP_MSS_NUC/DB.
INFO[E] 2008-01-17 07:35:56
Account group="stt-16\SAP_LDAP" does not exist.
INFO[E] 2008-01-17 07:35:56
Account group="ORA_TTD_DBA" does not exist.
INFO[E] 2008-01-17 07:35:57
Account group="ORA_TTD_OPER" does not exist.
INFO[E] 2008-01-17 07:36:01
Account group="stt-16\dbttdctl" does not exist.
ERROR 2008-01-17 07:53:15
FSL-02015 Node C:/ECC/DATA does not exist.
ERROR 2008-01-17 07:53:15
MSC-01003 ESyException: ESAPinstException: error text undefined
WARNING 2008-01-17 07:53:15
The step fillR3loadPackageTable with step key SAPSYSTEM_DB|ind|ind|ind|ind|ind|0|SAPSYSTEM|ind|ind|ind|ind|ind|0|SAPComponent|ind|ind|ind|ind|ind|0|DatabaseLoad|ind|ind|ind|ind|ind|0|fillR3loadPackageTable was executed with status ERROR.

Для начала переименуй папку C:/ECC 5.0 в C:/ECC_5_0, т.е. чтобы в пути не было папок с пробелами и другими нехорошими символами...