Limewire comes up with four hosts by default. Is there any that I can add to get better download speeds, more downloads, etc.

I am using this 3.9.2 beta version because I thought it would give me better searchs and such then 3.8.7.

Increasing the number of 'hosts' or Ultrapeers will not only probably not give you any actual benefit but, will almost certainly reduce overall performance.

In fact, BearShare now has a default a maximum of 2 Ultrapeers !
Performance is better than ever.

The only theoretical argument in favour of increased numbers of 'hosts' is related to the idea that more will automatically result in greater search returns... This is very much a fallacy.

If, indeed, you do not mean Ultrapeer connections but are instead referring to increasing the number of 'hosts' (who are sharing one particular file) in order to increase download 'speed', than the only way is to select for D/Ling those files which report the larger number of 'sources' sharing...

__________________
Fusion for REAL!--CDex 1.51--Wackyuses--Bitzi - Check Files Before Download !--.mp3 File Name Change Problems? Try Rename-It!--Alternate PORTS--Avast- Anti-Virus--WindowWasher--IrfanView--PC Pitstop - Test your PC !--Mac OSX Troubleshooting--GO .ape ! - For 'Lossless' Audio Compression--Port :6346 - Test If It Is 'Blocked'--Cole2k Codecs--OldVersion - Newer isn't always better !
Nod32 - Free Virus Scan: Use ESET's Online Antivirus Scanner

Tomorrow's forecast:
Sunni in places, Shi'ite in others...