Exactly what I've been looking for. Perfect for playing demo versions of songs. Simple to use and it works great.

Installed on J1.5 stable without a hitch. Works as advertised so far. Would love to see CREATE TABLE supported.

[I found that I could create tables by entering the full command in the free text area. It gives an error message but the tables were created exactly as specified. I don't recommend it but it worked for me.]

I've tried two other Forms extensions for J1.5 (PerForms and ChronoForms) and this is the best so far. Chronoforms may be more powerful in some areas, but is much less intuitive and doesn't actually create forms (you code them by hand or use a separate form generator utility). I gave up trying to get PerForms to work after a lot of wasted effort.

RSform has a very clean and intuitive interface and installed without incident (still a rarity on J1.5). From what I've tested it appears to work well and offers a lot of flexibility. Much of the fine tuning of a form requires entry of php code, but there are examples provided that make it straightforward even for non-coders like me.

A couple of annoyances that I'm sure will be fixed (or may be limitations of the trial version?):
1. It appears that there are two ways to re-order fields within a form(clicking on up and down arrows, or entering field numbers), but neither of them are currently working.
2. When working on a form the "Preview Form" (a great function!) only appears on the Add Field and Edit Field screens, but doesn't reflect any changes to the field you're adding or editing. It would be more useful here if it showed the current state of that field, and it would be helpful to have that on the Edit Form screen.
3. I can't find any user manual for it. There's a helpful FAQ with some good information but no comprehensive documentation that I can find.

Despite those minor issues this is definitely worth checking out.