It is sad to hear your tale of woe, but you are not alone in facing this problem. It sounds like you invested narrowly in techs or telecoms as a broad based portfolio or mutual fund would not be down so much for that time period. I know it is little consolation, but if you consider the 8k as tuition and you learned from your investing decisions then something of value can come from the past few years. Even if you are 50+, you probably have many decades of investing as you don't burn off all retirement money the year you retire.
More specific to your question about the loss and your options, the following references to earlier discussions of this issue should give you some guidance:
http://benefitslink.com/boards/index.php?showtopic=12458
http://benefitslink.com/boards/index.php?showtopic=17047
http://benefitslink.com/boards/index.php?showtopic=11989
http://benefitslink.com/boards/index.php?showtopic=8252
No magic bullets. The "solution" is often as disagreable as cod liver oil. I highly suggest that you consider an index fund or a very broadly based stock fund for you Roth. This will give you market performance and a little more stability on annual returns. Yes, I know market performance has been awful for almost three years. A down cycle that long is a very rare event. Good years normally outnumber bad years anywhere from 5:1 to 8:1. I would expect the next few years to be better than average for the stockmarket... capitalism is a very compelling force in the world and growth and profits will again be solid.