Update for Umbraco 7

MemberProfileContentFinder.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using Umbraco.Core;
using Umbraco.Core.Models;
using Umbraco.Core.Persistence.Querying;
using Umbraco.Web.Routing;



namespace FEE.Domain.MemberProfile
{
    // From http://creativewebspecialist.co.uk/2013/12/03/using-umbraco-pipeline-for-member-profile-urls/
    public class MemberProfileContentFinder : IContentFinder
    {
        public bool TryFindContent(PublishedContentRequest contentRequest)
        {
            var urlParts = contentRequest.Uri.GetAbsolutePathDecoded()
                .Split(new[] {'/'}, StringSplitOptions.RemoveEmptyEntries);

            //Check if the Url Parts
            // Starts with /profile/*
            if (urlParts.Length > 1 && urlParts[0].ToLower() == "profile")
            {
                //Lets try & find the member
                var memberName = urlParts[1];

                //Try and find a member where the property matches the memberName
                List<IMember> tryFindMember =
                    ApplicationContext.Current.Services.MemberService.GetMembersByPropertyValue("umbracoUrlName",
                        memberName).ToList();

                if (!tryFindMember.Any()) // try a partial match just in case
                {
                    tryFindMember = ApplicationContext.Current.Services.MemberService.GetMembersByPropertyValue("umbracoUrlName",
                        memberName,StringPropertyMatchType.Contains).ToList();
                }

                //See if tryFindMember is not null
                if (tryFindMember.Any())
                {
                    //Need to set the member ID or pass member object to published content
                    HttpContext.Current.Items["memberProfile"] = tryFindMember.FirstOrDefault();

                    //Set the Published Content Node to be the /Profile node - can get properties off it & my member profile in the view
                    contentRequest.PublishedContent =
                        contentRequest.RoutingContext.UmbracoContext.ContentCache.GetByRoute("/people/member-profile");
                }

                //Return true to say found something & stop pipeline & other contentFinder's from running
                return true;
            }

            //Not found any content node to display/match - so run next ContentFinder in Pipeline
            return false;
        }
    }
}