gp4db and gp4world have most of ricardo and crew's tracks to make them high res you'll need to download the updates from either gpitalia or dragon racing
@welshjim22: I has been very busy lately for profesional reason and I don't know when I'll have time to put my website online again. For that I has stopped to make tracks updates too. As kizz360 wrote, you find all of my tracks updates available to download on GP4db.com and GP4World websites.