FILE NOT FOUND ERROR WHILE INSTALLING ORACLE EM GRID CONTROL 10.2.0.1

Question

FILE NOT FOUND ERROR ON FILES: generalstup, seedstup during the setup phase and when i click ignore from a list of cancel, retry and ignore it moves to the configuration phase and rapidly moves from 63% to 100% and gives the error OUI-10133 invalid staging area. i have tried the install 3 times and dont know what the problem is. i am doing the oracle EM GC INSTALL WITH NEW DATABASE OPTION. i downloaded the full version disks 1-3 from the website:http://www.oracle.com/technology/software/products/oem/index.html
Enterprise Manager 10g Grid Control Release 2 (v10.2.x)
Full Installers (Agent, Repository, OMS, and Management Packs)
Oracle Enterprise Manager 10g Grid Control Release 2 (10.2.0.1) for Linux x86
when this is extracted it leaves me with Disk1, 2, and 3
install started from 1, then it later asks for two whick happens to instead be but under Dist 3-but there are two disk2's under Disk 3- one under oms and one under rdbms folder. i have tried both and alas same errors
i even triwd the same download from edelivery.oracle.com and gives the same madness
am stuck.

Answer 1

i followed the link and all the instructions things seemed to go well: it still asked for two files i did not have or could not locate: first its asked for generalstub, then it asked for seedstup and then generalstup again. at this point the installation was at 67% and had passed the link succesful stage and was at the setup succeful stage. when i clicked ignore on generalstub, seedstup and then generalstup again it quicly moved to 100% and never took me to the stage for me to run oraInstroot.sh and allroot.sh
the configuration assistant stage never cameup and it skipped to the page Specify Repository Database Configuration
where it asked for repository database hostname port, service/sid and SYSMAN password and also manament service security password. whe i input all the infor mation it will give errors. i have tries deleting all oracle 3 or 4 times and all files that oracle has and repeated the process and am always stuck here.
error reads :
-error cheching the existence of the SYSMAN user in Management repository
-exception occured while connecting to database . please check the connection details you specified and retry
-io exception connection refused: (DESCRIPTION=(TMP=)(VSNUMM=168821760)(ERR=12514)(ERRO_STACK=(ERROR=(CODE=12514)(EMFI=4))))
REP DB HOSTNAME:SA-OMS-01
PORT:1521
SERVICE/SID:OMSDB01
SYSMAN PASSWORD:PASS
THE REST I PUT PASS AS PASSWORD
NOT SURE WHAT TO DO NEXT.