Ok i have recently started to get into pentatonic scales.Im not terribly bad at it but I also havent gotten that far in them.Anyways I for some reason really have trouble applying them to music I just cant really make up good solos unless theres a good beat playing.Also what are modes.Thanks for whatever help you can give me.
John 5Dimebag DarrelJimi HendrixSlash Foo Fighters

Search through the Guitar & Bass Basics forum.
Read .
Get some and practice playing the pentatonic scales over them. Some blues licks are , , and in the recordings of many a blues guitarist. Check out the Blues & Jazz forum for recommendations.
For rock, seek out the Rock forum, for Metal the metal forum.

Skill at soloing mainly comes through playing each day, learning solos from songs, experimenting, improvising over backing tracks ...