Tora 2 unable to connect to Oracle 10

  • I just installed Tora 2 and i am unable to connect to Oracle 10 database, i am choosing Oracle (Instant-Client) option, i enter the username/passcode and choose my database, (i have tried leaving hostname/port location blank and filled both). Ideally after i choose my database TOra should be able to pick up the information from TNSNames.ora file as its populating the database dropdown from that file. Now i have unchecked all checkboxes for SQL * Net, SYS OPER etc and am unable to connect. I can connect using TOra 1.3.22 svn. I am using winsows XP, can you tell what could be wrong??