I tried adding a blog draft by setting a future date on the post, then the "Edit Drafts" link appears. I confirm there seems to be a bug in the pgsql version because when I click the link I get an error though different than the one you posted.
System.Web.HttpException: Property Heading not found in System.Data.Common.DbDataRecord
at System.Web.UI.DataBinder.GetPropertyValue (System.Object container, System.String propName) [0x0006c] in /usr/src/packages/BUILD/mono-2.2/mcs/class/System.Web/System.Web.UI/DataBinder.cs:192
at System.Web.UI.DataBinder.Eval (System.Object container, System.String expression) [0x00078] in /usr/src/packages/BUILD/mono-2.2/mcs/class/System.Web/System.Web.UI/DataBinder.cs:74
at ASP.blog_drafts_aspx.__BuildControl__bctrl_62_DB_1 (System.Object sender, System.EventArgs e) [0x00000]
at (wrapper delegate-invoke) System.EventHandler:invoke_void__this___object_EventArgs (object,System.EventArgs)
at System.Web.UI.Control.OnDataBinding (System.EventArgs e) [0x00029] in /usr/src/packages/BUILD/mono-2.2/mcs/class/System.Web/System.Web.UI/Control.cs:908
at System.Web.UI.Control.DataBind (Boolean raiseOnDataBinding) [0x0003c] in /usr/src/packages/BUILD/mono-2.2/mcs/class/System.Web/System.Web.UI/Control.cs:1828
at System.Web.UI.Control.DataBind () [0x00000] in /usr/src/packages/BUILD/mono-2.2/mcs/class/System.Web/System.Web.UI/Control.cs:1236
at System.Web.UI.Control.DataBindChildren () [0x0002c] in /usr/src/packages/BUILD/mono-2.2/mcs/class/System.Web/System.Web.UI/Control.cs:1255
at System.Web.UI.Control.DataBind (Boolean raiseOnDataBinding) [0x00047] in /usr/src/packages/BUILD/mono-2.2/mcs/class/System.Web/System.Web.UI/Control.cs:1829
at System.Web.UI.Control.DataBind () [0x00000] in /usr/src/packages/BUILD/mono-2.2/mcs/class/System.Web/System.Web.UI/Control.cs:1236
at System.Web.UI.WebControls.Repeater.DoItem (Int32 i, ListItemType t, System.Object d, Boolean databind) [0x00053] in /usr/src/packages/BUILD/mono-2.2/mcs/class/System.Web/System.Web.UI.WebControls/Repeater.cs:116
at System.Web.UI.WebControls.Repeater.CreateControlHierarchy (Boolean useDataSource) [0x0008e] in /usr/src/packages/BUILD/mono-2.2/mcs/class/System.Web/System.Web.UI.WebControls/Repeater.cs:148
at System.Web.UI.WebControls.Repeater.OnDataBinding (System.EventArgs e) [0x00022] in /usr/src/packages/BUILD/mono-2.2/mcs/class/System.Web/System.Web.UI.WebControls/Repeater.cs:92
at System.Web.UI.WebControls.Repeater.DataBind () [0x00000] in /usr/src/packages/BUILD/mono-2.2/mcs/class/System.Web/System.Web.UI.WebControls/Repeater.cs:164
at mojoPortal.Web.BlogUI.BlogDraftsPage.PopulateControls () [0x00000]
at mojoPortal.Web.BlogUI.BlogDraftsPage.Page_Load (System.Object sender, System.EventArgs e) [0x00000]
at System.Web.UI.Control.OnLoad (System.EventArgs e) [0x00029] in /usr/src/packages/BUILD/mono-2.2/mcs/class/System.Web/System.Web.UI/Control.cs:954
at mojoPortal.Web.mojoBasePage.OnLoad (System.EventArgs e) [0x00000]
at System.Web.UI.Control.LoadRecursive () [0x00020] in /usr/src/packages/BUILD/mono-2.2/mcs/class/System.Web/System.Web.UI/Control.cs:1433
at System.Web.UI.Page.ProcessLoad () [0x0004a] in /usr/src/packages/BUILD/mono-2.2/mcs/class/System.Web/System.Web.UI/Page.cs:1592
at System.Web.UI.Page.ProcessPostData () [0x0004d] in /usr/src/packages/BUILD/mono-2.2/mcs/class/System.Web/System.Web.UI/Page.cs:1570
at System.Web.UI.Page.InternalProcessRequest () [0x001bf] in /usr/src/packages/BUILD/mono-2.2/mcs/class/System.Web/System.Web.UI/Page.cs:1528
at System.Web.UI.Page.ProcessRequest (System.Web.HttpContext context) [0x0005b] in /usr/src/packages/BUILD/mono-2.2/mcs/class/System.Web/System.Web.UI/Page.cs:1347
But other than drafts it works as expected. I will look into the bug with drafts for the next release.
Best,
Joe