some of my users are complaining that when they try to register that the register button will not work... I think is coincides with a page load excpetion... please see below... would appreciate any explanations as to the error...

UserID: -1
UserName: 
ActiveTabID: 62
ActiveTabName: Home
RawURL: /register.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer: http://www.secretcustomer.com.au/register.aspx
UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/534.59.10 (KHTML, like Gecko) Version/5.1.9 Safari/534.59.10
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: dd76e01e-8fab-46c4-96c5-46b4592a17b4
InnerException: String was not recognized as a valid DateTime.
FileName: 
FileLineNumber: 0
FileColumnNumber: 0
Method: System.DateTimeParse.Parse
StackTrace: 
Message: DotNetNuke.Services.Exceptions.PageLoadException: String was not recognized as a valid DateTime. ---> System.FormatException: String was not recognized as a valid DateTime. at System.DateTimeParse.Parse(String s, DateTimeFormatInfo dtfi, DateTimeStyles styles) at DotNetNuke.UI.WebControls.DateEditControl.LoadPostData(String postDataKey, NameValueCollection postCollection) at System.Web.UI.Page.ProcessPostData(NameValueCollection postData, Boolean fBeforeLoad) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace ---

seems issue with DOB field as that has Date parameter in. The format which registration expecting might be different, or while inserting its picking some other. DOB is custom field, so while you added in reg form, check what datatype you have specified against that.