I have done the following

after reconnecting the DPP44)
1.. Rechecked 119/TP18 at original 811 location and signal level at 98 and locked. All Transponders are active and except for the spot beams have signal strengths at or near 100.
2. Moved the 811 to where I was having problems with the 508. All transponders are active with good signal levels...conclusion...it is probably not the cable at the site where I was having the most trouble.
3. Connected the 508 at the site where the 811 normally sits and no even transponders after check switch. Conclusion: since the even transponders are on the high end of the band (1650 to 2150) it might indicate a bad cable OR more likely the sensitivity of the 811 is much better than that of the 508
4. Moved the 508 where the 6000 use to sit and same results as in 3 above.
I have noted over the past several days that whenever I did a check switch with my two (now returned 501s and now the 508...all of which are refurbished) that once in a while I would get only the odd transponders. I also noted that even when all transponders were active AND with a reasonably good signal on 119/18 the extended program guide does not load. Everything else works. I also note that TP 1,3, and 9 on 119 go dead on the 508 but I have no way of knowing if this controls the download of the EEPG.
I will re-do my connectors (quad shields are a real pain and this may be a root cause with my type F connectors which are made for quad shield) and finally I will buy a new section of RG6 and connect it directly from my 508 to one of the dual ports of the dish. Regretably, the closest store that has any RG-6 is 60 miles away (Radio Shack) and the only store that has any name brand RG-6 is over 150 miles away (Frys electronics in Houston). I could have gotten a bad batch of RG-6 from Frys and if so, the 1000 feet that I laid out before they put the ceiling and walls on this house will just make me cry a little more.
At least my giga bit network is up and ready for video distribution...too bad there is only dial up here.
Thanks again for the critique. If you have any advice on re-doing the quad shield connectors let me know. And yes I do have barell connectors at all of the plates where I ran all the coax. I hate to think about punching holes through the wall.