Yoda
I'm still trying to get an answer from Adobe about LiveCycle Forms.
To be honest I've not tried using pdf forms for inserting or updating, only to populate - like insurance report forms - based on data already held.
Used to use APToolkit with asp, but that is involved coding. The downside to LiveCycle is it won't support POST so SELECT WHERE critera has to be via the address bar!
If I get any answers I'll let you know! Just before 8.0 came out I did actually get a call from Adobe sales and they assured me if I upgraded LiveCycle would work fine server side (and I wouldn't need and other 'additions'), but.....