It sounds like your account you are using is a User Account that cannot modify anything (Read Only). Do you have the Admin password? If not, cracking into an Access database requires tools that cost money.

[link|http://www.lostpassword.com/|http://www.lostpassword.com/]

[link|http://www.lostpassword.com/access.htm|http://www.lostpassword.com/access.htm]

[link|http://www.elcomsoft.com/acpr.html|http://www.elcomsoft.com/acpr.html]

[link|http://www.pwcrack.com/access.shtml|http://www.pwcrack.com/access.shtml]

[link|http://www.passwordrecoverytools.com/en/access.shtml|http://www.passwordr...m/en/access.shtml]

[link|http://www.crackpassword.com/|http://www.crackpassword.com/]

Good luck getting an account that can work with the database to edit it. Without one, you won't be able to do much with it.