Yes you can Jimbo. You can use FileMaker's Instant Web Publishing: the passwords from your FileMaker file translate to the web and your users don't need FileMaker Pro. While you can do this in FM6, it is MUCH improved (ie easier) in FM8.5
Definitely has its quirks and takes some patience, but I think its pretty slick.
From...
http://www.filemaker.com/developers/resources/web.html
You can make your FileMaker solutions available over the web instantly from FileMaker Pro 8, FileMaker Pro 8.5 Advanced, and FileMaker Server 8 Advanced; no coding required!. The complete FileMaker interface is rendered using CSS technologies and is available to users through their web browsers. FileMaker IWP supports five users when served by FileMaker Pro 8 and FileMaker Pro 8 Advanced, and up to 100 users when served by FileMaker Server 8 Advanced. All of the security and access privileges that you defined in your FileMaker solution are honored when users connect via IWP, and the user interface, search and navigation tools will already be familiar to FileMaker users.