Operation must use an updateable query

Have a look here:
http://support.microsoft.com/kb/175168

can u post the sql ? does your sql include a select using aggregate functions or something?

string connectionString = string.Format(ConfigurationSettings.AppSettings["myconn"], Server.MapPath(ConfigurationSettings.AppSettings["finddb"]));
        OleDbConnection con = new OleDbConnection(connectionString);
        con.Open();

        string name = this.txtName.Text;
        string cname = this.txtCompName.Text;
        string number1 = this.txtContactNumber.Value;
        string email1 = this.txtEmail.Text;
        string address = this.txtAddress.Text;

        string sqlinsert = "insert into MemberData (MName,CName,Number1,Email1,Address)values ('" + name + "','" + cname + "','" + number1 + "','" + email1 + "','" + address + "')";
        OleDbCommand cmdinsert = new OleDbCommand(sqlinsert, con);
        cmdinsert.ExecuteNonQuery();

well from looking at your query, I cant see anything wrong with it

what datatype is Number1, is it text? if its numeric then remove the single quotes

 string sqlinsert = "insert into MemberData (MName,CName,Number1,Email1,Address)values ('" + name + "','" + cname + "'," + number1 + ",'" + email1 + "','" + address + "')";


Have u looked into using parameters ? have a look at how its done here http://aspnet101.com/aspnet101/tutorials.aspx?id=1

Also, look at this. It is talking about permissions http://forums.asp.net/t/154273.aspx

actually it works fine on local machine but not on web server.

Does your Access DB have Read and Write permissions on the server?

on the server????
Well I have uploaded the same mdb on the server.

http://www.aryasolutions.in/newsletter/newsletters.aspx
the page showing error

if it works on your box then sounds like permissions. did u look a bit more at the last link I gave?

ya but I am not authorised to do anything on web server.

It is a third party server.

I can create a DSN for access.That's it what I can do there.

Ok I am not getting that Security tab on the FTP  but I am getting it on my machine.

Ok I'll post back if anything is updated