i have a problem with limewire.I took a speed test and i have 55 KB per seconds speed [or 396 kbps] but when i download episodes from a tv series i have 16 KB per second speed with only 2 hosts.when i first downloaded limewire i had 55 KB per second speed with 8 hosts.What can i do?

You can only downld as fast as your hosts have available!!!! I only have a 256 kbps connection but I can get 27 KB/s either from the one downld or others combined. You need to find new sources, re-search the topic to find fresh hosts! You can also cancel from the downld window & reselect to downld from search results window. This will hopefully refresh stale downloads.

depends on the hosts internet connection, if they are on dial up it will be slower than a granny driving in a school zone!!
Plus your downloading files of roughly 300 MB they won't take 5 seconds, give it time!!